116+ Define Atom In Science

116+ Define Atom In Science. Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch). Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. How to use atom in a sentence.

Nejlepší Atoms

The atom is considered the basic building block of matter. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. All atoms are roughly the same size, whether they have 3 or 90 electrons. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. The nucleus is tiny compared with the total size of the atom.

The nucleus is tiny compared with the total size of the atom.

How to use atom in a sentence. The atom is considered the basic building block of matter. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. All atoms are electrically neutral, because every atom has an equal number of electrons and protons. Nearly all of the atom's mass is located in the nucleus.

However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus... Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch). The nucleus is tiny compared with the total size of the atom. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. All atoms are roughly the same size, whether they have 3 or 90 electrons.

Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Nearly all of the atom's mass is located in the nucleus. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. The nucleus is tiny compared with the total size of the atom. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. All atoms are electrically neutral, because every atom has an equal number of electrons and protons. All atoms are roughly the same size, whether they have 3 or 90 electrons.. How to use atom in a sentence.

Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch). However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus.

While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. The nucleus is tiny compared with the total size of the atom. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. The atom is considered the basic building block of matter. All atoms are roughly the same size, whether they have 3 or 90 electrons. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Anything that has a mass—in other words, anything that occupies space—is composed of atoms.

The atom is considered the basic building block of matter. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. Nearly all of the atom's mass is located in the nucleus.

Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch). Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation. All atoms are roughly the same size, whether they have 3 or 90 electrons. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. Anything that has a mass—in other words, anything that occupies space—is composed of atoms. All atoms are electrically neutral, because every atom has an equal number of electrons and protons. Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch). Nearly all of the atom's mass is located in the nucleus. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now.. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now.

While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. All atoms are roughly the same size, whether they have 3 or 90 electrons. Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch). Nearly all of the atom's mass is located in the nucleus. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons.

Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons... Anything that has a mass—in other words, anything that occupies space—is composed of atoms. All atoms are electrically neutral, because every atom has an equal number of electrons and protons. How to use atom in a sentence. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. Nearly all of the atom's mass is located in the nucleus. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation. How to use atom in a sentence.

Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. All atoms are electrically neutral, because every atom has an equal number of electrons and protons.

However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. Anything that has a mass—in other words, anything that occupies space—is composed of atoms. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. All atoms are roughly the same size, whether they have 3 or 90 electrons. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. All atoms are electrically neutral, because every atom has an equal number of electrons and protons. How to use atom in a sentence. Nearly all of the atom's mass is located in the nucleus. The atom is considered the basic building block of matter.

Nearly all of the atom's mass is located in the nucleus.. All atoms are roughly the same size, whether they have 3 or 90 electrons. The atom is considered the basic building block of matter. Anything that has a mass—in other words, anything that occupies space—is composed of atoms. The nucleus is tiny compared with the total size of the atom. Nearly all of the atom's mass is located in the nucleus.. All atoms are electrically neutral, because every atom has an equal number of electrons and protons.

Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation... All atoms are roughly the same size, whether they have 3 or 90 electrons. The nucleus is tiny compared with the total size of the atom. How to use atom in a sentence. Anything that has a mass—in other words, anything that occupies space—is composed of atoms. Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation. The atom is considered the basic building block of matter. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus.. All atoms are roughly the same size, whether they have 3 or 90 electrons.

How to use atom in a sentence... Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. Nearly all of the atom's mass is located in the nucleus. Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch). All atoms are electrically neutral, because every atom has an equal number of electrons and protons... Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch).

While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus... Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation.

A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. The nucleus is tiny compared with the total size of the atom. All atoms are electrically neutral, because every atom has an equal number of electrons and protons. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. All atoms are electrically neutral, because every atom has an equal number of electrons and protons.

A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre.. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. All atoms are electrically neutral, because every atom has an equal number of electrons and protons. Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch). All atoms are roughly the same size, whether they have 3 or 90 electrons. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. How to use atom in a sentence.

However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. The atom is considered the basic building block of matter. Nearly all of the atom's mass is located in the nucleus. Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation.. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons.

Anything that has a mass—in other words, anything that occupies space—is composed of atoms. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons.. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus.

A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre... How to use atom in a sentence. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. All atoms are electrically neutral, because every atom has an equal number of electrons and protons. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. All atoms are roughly the same size, whether they have 3 or 90 electrons. Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Nearly all of the atom's mass is located in the nucleus. Anything that has a mass—in other words, anything that occupies space—is composed of atoms. Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch)... Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch).

However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. Nearly all of the atom's mass is located in the nucleus. Anything that has a mass—in other words, anything that occupies space—is composed of atoms. Anything that has a mass—in other words, anything that occupies space—is composed of atoms.

How to use atom in a sentence... The atom is considered the basic building block of matter. Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation.

Nearly all of the atom's mass is located in the nucleus... A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. The atom is considered the basic building block of matter. All atoms are roughly the same size, whether they have 3 or 90 electrons. The nucleus is tiny compared with the total size of the atom. How to use atom in a sentence. Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch).

The atom is considered the basic building block of matter. Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch). Nearly all of the atom's mass is located in the nucleus. The nucleus is tiny compared with the total size of the atom. Anything that has a mass—in other words, anything that occupies space—is composed of atoms. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation. All atoms are roughly the same size, whether they have 3 or 90 electrons. How to use atom in a sentence... The atom is considered the basic building block of matter.

Nearly all of the atom's mass is located in the nucleus... All atoms are roughly the same size, whether they have 3 or 90 electrons. Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation... While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now.

Nearly all of the atom's mass is located in the nucleus. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre.

The nucleus is tiny compared with the total size of the atom. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now.. The nucleus is tiny compared with the total size of the atom.

All atoms are roughly the same size, whether they have 3 or 90 electrons. How to use atom in a sentence. The atom is considered the basic building block of matter. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. Anything that has a mass—in other words, anything that occupies space—is composed of atoms. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre.

Nearly all of the atom's mass is located in the nucleus.. Anything that has a mass—in other words, anything that occupies space—is composed of atoms. The atom is considered the basic building block of matter. All atoms are electrically neutral, because every atom has an equal number of electrons and protons. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre... Nearly all of the atom's mass is located in the nucleus.

However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch). However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. All atoms are roughly the same size, whether they have 3 or 90 electrons. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. How to use atom in a sentence.

How to use atom in a sentence. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. All atoms are roughly the same size, whether they have 3 or 90 electrons. Nearly all of the atom's mass is located in the nucleus. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. Anything that has a mass—in other words, anything that occupies space—is composed of atoms. Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons.

Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch)... Nearly all of the atom's mass is located in the nucleus. Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch). While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation. How to use atom in a sentence. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus.. Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch).

Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch). Nearly all of the atom's mass is located in the nucleus. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. All atoms are electrically neutral, because every atom has an equal number of electrons and protons. The nucleus is tiny compared with the total size of the atom. The nucleus is tiny compared with the total size of the atom.

While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. The atom is considered the basic building block of matter. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. Nearly all of the atom's mass is located in the nucleus. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons... Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch).

Anything that has a mass—in other words, anything that occupies space—is composed of atoms. The nucleus is tiny compared with the total size of the atom. All atoms are electrically neutral, because every atom has an equal number of electrons and protons. All atoms are electrically neutral, because every atom has an equal number of electrons and protons.

The atom is considered the basic building block of matter... The nucleus is tiny compared with the total size of the atom. Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. Nearly all of the atom's mass is located in the nucleus... Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation.

The nucleus is tiny compared with the total size of the atom... How to use atom in a sentence. The nucleus is tiny compared with the total size of the atom. All atoms are roughly the same size, whether they have 3 or 90 electrons. Nearly all of the atom's mass is located in the nucleus... A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre.

Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. Nearly all of the atom's mass is located in the nucleus. All atoms are roughly the same size, whether they have 3 or 90 electrons. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre.. Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch).

A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre... The nucleus is tiny compared with the total size of the atom. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. The atom is considered the basic building block of matter. Nearly all of the atom's mass is located in the nucleus. How to use atom in a sentence. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. Anything that has a mass—in other words, anything that occupies space—is composed of atoms. Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch)... Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons.

Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch). However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. The nucleus is tiny compared with the total size of the atom. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. Anything that has a mass—in other words, anything that occupies space—is composed of atoms.. Anything that has a mass—in other words, anything that occupies space—is composed of atoms.

The nucleus is tiny compared with the total size of the atom.. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now... How to use atom in a sentence.

A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch). Nearly all of the atom's mass is located in the nucleus. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now... Anything that has a mass—in other words, anything that occupies space—is composed of atoms.

The atom is considered the basic building block of matter. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. The atom is considered the basic building block of matter. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. Anything that has a mass—in other words, anything that occupies space—is composed of atoms.

The atom is considered the basic building block of matter. How to use atom in a sentence. The nucleus is tiny compared with the total size of the atom. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. All atoms are electrically neutral, because every atom has an equal number of electrons and protons. All atoms are roughly the same size, whether they have 3 or 90 electrons. Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch). Anything that has a mass—in other words, anything that occupies space—is composed of atoms.. The nucleus is tiny compared with the total size of the atom.

How to use atom in a sentence. The atom is considered the basic building block of matter. Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation. All atoms are roughly the same size, whether they have 3 or 90 electrons. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch). All atoms are electrically neutral, because every atom has an equal number of electrons and protons. Anything that has a mass—in other words, anything that occupies space—is composed of atoms... The atom is considered the basic building block of matter.

All atoms are electrically neutral, because every atom has an equal number of electrons and protons. All atoms are roughly the same size, whether they have 3 or 90 electrons. Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch). However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. Nearly all of the atom's mass is located in the nucleus. The nucleus is tiny compared with the total size of the atom. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. Anything that has a mass—in other words, anything that occupies space—is composed of atoms. Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation. The atom is considered the basic building block of matter. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now.. Nearly all of the atom's mass is located in the nucleus.

Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons.. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre. How to use atom in a sentence. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. All atoms are electrically neutral, because every atom has an equal number of electrons and protons. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. Anything that has a mass—in other words, anything that occupies space—is composed of atoms... Anything that has a mass—in other words, anything that occupies space—is composed of atoms.

Nearly all of the atom's mass is located in the nucleus.. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation. A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre.

The nucleus is tiny compared with the total size of the atom.. All atoms are electrically neutral, because every atom has an equal number of electrons and protons. Anything that has a mass—in other words, anything that occupies space—is composed of atoms. All atoms are roughly the same size, whether they have 3 or 90 electrons. The nucleus is tiny compared with the total size of the atom. Nearly all of the atom's mass is located in the nucleus. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now.. The nucleus is tiny compared with the total size of the atom.

The nucleus is tiny compared with the total size of the atom. The atom is considered the basic building block of matter. All atoms are electrically neutral, because every atom has an equal number of electrons and protons. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons. Atom definition at dictionary.com, a free online dictionary with pronunciation, synonyms and translation. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. All atoms are roughly the same size, whether they have 3 or 90 electrons. While its name originally referred to a particle that couldn't be divided any more—the smallest thing possible—we now... A convenient unit of length for measuring atomic sizes is the angstrom (å), defined as 10 −10 metre.

Approximately 50 million atoms of solid matter lined up in a row would measure 1 cm (0.4 inch)... However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus. Atoms are composed of electrons and a nucleus.the nucleus contains protons and neutrons.

The atom is considered the basic building block of matter. Anything that has a mass—in other words, anything that occupies space—is composed of atoms. How to use atom in a sentence.