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How many valence electrons does a neutral atom of aluminum have? A. 3 B. 10 C. 13 D. More information is needed to figure this out.

How many valence electrons does a neutral atom of aluminum have? A. 3 B. 10 C. 13 D. More information is needed to figure this out.
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How many valence electrons does a neutral atom of aluminum have?

A. 3
B. 10
C. 13
D. More information is needed to figure this out.

User Richhallstoke
by
8.3k points

1 Answer

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A. Valence electrons are the electrons on the outermost energy level. If you write out the electron configuration you add all of the electrons on the 3rd energy level. 
User Diduknow
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