Chemistry, asked by hannanshafi127, 2 months ago

phosphorus belongs to third period of group VA how many electron need to complete the valence shell (a)2 (b)3 (c)3 (d)4​

Answers

Answered by jumanasalwa
1

Answer:

3 electrons are needed to complete the valence shell. Because the electronic configuration of phosphorus is 1s2 2s2 2p6 3s2 3p3. So electrons in the last shell of phosphorus is 5.So to complete the valence shell we need 3 more electrons.

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