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PLEASE HELP!!!

What determines the properties of elements?

A) The number of neutrons

B) The number of electron shells

C) The average atomic mass

D) The number of electrons that fill the outer shell

E) The total number of electrons

2 Answers

3 votes
C the average atomic mass
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User Padarom
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The answer to this question is A
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User Atlante Avila
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