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nordsb [41]
2 years ago
10

3. How many valence electrons are in the outermost energy level of each of the following elements?

Physics
1 answer:
Karo-lina-s [1.5K]2 years ago
8 0
A.helium has no valency 
B.lithium has 1
C.nitrogen has either 5 or 3 because it bonds outer orbital
D.magnesium has 2
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