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The number of protons that are found is an atom is referred to as the atomic number. This number is also referred to as the proton number. More »

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Collectively, protons and neutrons are called nucleons. Along with electrons, they make up the three subatomic particles in an atom.. More »

www.reference.com Science Chemistry Atoms & Molecules

The core, or dense center of an atom, is called the atom's nucleus. The nucleus contains protons, which have positive charges, and neutrons, which have no charge and are neutral. More »

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To draw a Bohr model of an atom, first find the number of protons, neutrons and electrons in the atom from its atomic weight and atomic number. After that, place the neutrons and the protons in the nucleus, and draw the ... More »

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The number of protons an atom has depends on what element it is. A hydrogen atom, for example, only has one proton. A nitrogen atom has 7 protons, an atom of antimony has 51 protons and an atom of radium has 88 protons. More »

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The size of an atom is dependent on the type of atom the number of protons, neutrons and electrons it contains. Each atom on the periodic table has a different size. More »

www.reference.com Science Chemistry Atoms & Molecules

To find the number of neutrons in an atom, subtract the number of protons in the atom from the atom's mass. These numbers are found on the periodic table of elements. More »

www.reference.com Science Chemistry Atoms & Molecules