1.

An element belongs to group 15 and 3 rd period of the periodic table, its electrons configuration would be …………………………

Answer»

`1s^(2)2S^(2)3s^(4)`
`1s^(2)2s^(2)sp^(3)`
`1s^(2)2s^(2)2P^(6)3s^(2)3p^(2)`
`1s^(2)2s^(2)2p^(6)3s^(2)3p^(3)`

SOLUTION :`1s^(2)2s^(2)2p^(6)3s^(2)3p^(3)`


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