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An element belong to group-15 and third ...

An element belong to group-15 and third period of the periodic table. Its electronic configuration will be-

A

`1s^(2)2s^(2)2p^(3)`

B

`1s^(2)2s^(2)2p^(4)`

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
C
Electronic configuration of the valence shell of group 15 elements in the periodic table is `ns^(2)sp^(3), where n is the period number. Therefore, the element located in the third period has the electronic configuration `1s^(2)2s^(2)2p^(6)3s^(2)3p^(3)`.
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