A and P Review Sheet Ch 2
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Matter is anything that occupies space and has ____
The smallest stable unit of matter is the _____
Possesses a neg charge
sum of the masses of protons and neutrons in the atom:
possesses a positive charge:
subatomic particle that has no electrical charge:
regions where electrons are found:
number of protons found in an atom:
first energy level/shell can hold ____ electrons and the second contains a max of____
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