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Electron Arrangements
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Electron Arrangements
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9. Electrons in Atoms and the Periodic Table / Electron Arrangements / Problem 4
Problem 4
If an atom has an electron configuration of 1s
2
2s
2
2p
6
3s
2
3p
4
, how many electrons are in the third energy level?
A
6
B
4
C
2
D
10
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