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Mariana [72]
3 years ago
7

The electron configuration of an element is 1s2 2s2 2p1. How many valance electrons does the element have. 1,2,3 or 4

Chemistry
2 answers:
kotykmax [81]3 years ago
5 0

Answer:

3

Explanation:

dlinn [17]3 years ago
4 0

Answer:

3

Explanation:

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