Question

Which of the following can most easily form unipositive gaseous ion?

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

Answer 1

Answer: (B)

$1s^{2}2s^{2}2p^{6}3s^{2}3p^{l}$

Answer 2

: Removal of electron from p – orbital is easier than from s – orbital because of less penetrating power of p – orbitals.