Atomic number is Phosphorus is 15 Electronic configuration=K L. M – InterviewSolution

1.	Atomic number is Phosphorus is 15 Electronic configuration=K L. M 2. 8. 5 To form octet it requires 3 electron .Hence valency should be 3 but why is valency of Phosphorus is 5 as well as 3 .??
Answer» Atomic number is Phosphorus is 15 Electronic configuration=K L. M 2. 8. 5 To form octet it requires 3 electron .Hence valency should be 3 but why is valency of Phosphorus is 5 as well as 3 .??

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