If the electronic configuration of an element is 1s2 2s2 2p6 3s2 3p6 3d2 4s2, the four electrons involved in chemical bond formation will be.

Question

If the electronic configuration of an element is 1s2 2s2 2p6 3s2 3p6 3d2 4s2, the four electrons involved in chemical bond formation will be. (A) 3p6 (B) 3p6, 4s2 (C) 3p6 , 3d2 (D) 3d2, 4s2

Tardigrade Admin · Accepted Answer

Electrons from outermost shells ns and (n - 1 )d take part in bond formation for transition elements.

Q. If the electronic configuration of an element is $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{2} 4 s^{2}$ , the four electrons involved in chemical bond formation will be________.

$3 p^{6}$

$3 p^{6}, 4 s^{2}$

$3 p^{6}, 3 d^{2}$

$3 d^{2}, 4 s^{2}$

Electrons from outermost shells $n s$ and $(n - 1) d$ take part in bond formation for transition elements.

Q. If the electronic configuration of an element is 1s22s22p63s23p63d24s2, the four electrons involved in chemical bond formation will be________.

3p6

3p6,4s2

3p6,3d2

3d2,4s2