Question

The correct electronic configurationfor the ground state of silicon (atomic number 11) is

• A. $1s^{2}2s^{2}2p^{6}3s^{2}3p^2$
• B. $1s^{2}2s^{2}2p^{6}3p^4$
• C. $1s^{2}2s^{2}2p^{4}3s^{2}3p^4$
• D. $1s^2{s}^{2}2p^{5}3s^{1}3p^3$

Answer 1

The correct option is A $1s^{2}2s^{2}2p^{6}3s^{2}3p^2$

${}_{14}Si:1s^{2}2s^{2}2p^{6}3s^{2}3p^2$