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Atoms and Electron Structure
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Atoms and Electron Structure
Atomic Structure
The nucleus contains almost all of an atom because that is where the protons are found.
The nucleus of an atom contains all of the positive charge and the electrons are negative.
Atomic number: the number of protons in the nucleus
Mass number: number of protons and neutrons in the nucleus
Number of neutrons: mass number - atomic number
Number of electrons: number of protons (in a neutral atom)
Isotopes and Ions
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- GCSE Chemistry Note on Atoms and Electron Structure, created by octaveofviolet on 12/03/2015.
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