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Question: An elements has the electronic configuration . \[1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{8}4s^{2}\] What...

An elements has the electronic configuration .

1s22s22p63s23p63d84s21s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{8}4s^{2}

What will be its position in the periodic table?

A

Period 4, Group 10

B

Period 2, Group 2

C

Period 4, Group 2

D

period 2, Grop 8

Answer

Period 4, Group 10

Explanation

Solution

: n = 4 hence, element lies in 4th period.

Group number, = ns + (n – 1) d = 2 + 8 = 10