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2.1 Atoms

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2.1. Identify the three basic subatomic particles; protons, electrons and neutrons, and their relative masses and charges, and their relative positions in the atom. (CS 1.a)

A	B
Electron	Negatively Charged
Proton	Positively Charged
Number of Protons	Atomic Number
Number of Protons + Number of Neutrons	Atomic Mass Number
Nucleus	location of proton and neutrons
Opposite Charges	Attract
Like Charges	Repel
Atom	Electrically Neutral
Electron Cloud	probable location of electrons

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