What is the electronic configuration of an element in its first excited state which is isoelectronic with $O_2$?

Q. The valence electronic configuration of an element is $\left[Ne\right]3s^1$. The element is :

Q. The electronic configuration of a s-block element is ${\text{[Ne]3s}}^2$. The group number of this element is:

Q.

Question 22

Amongst the following elements whose electronic configuration are given below, the one having the highest ionisation enthaply is

(a)$\left[Ne\right]3s^{2}3p^1$

(b) $\left[Ne\right]3s^{2}3p^3$

(c) $\left[Ne\right]3s^{2}3p^2$

(d) $\left[Ar\right]3d^{10}4s^{2}4p^3$

Q. The electronic configuration of an element 'A' is $\left[Ne\right]3s^2$. With which of the following elements it can form an ionic compound of the type $A{X}_2$?

Q. Which of the following has highest electron gain enthalpy?
(A) $\left[Ne\right]3s^{2}3p^3$
(B) $\left[Ne\right]3s^{2}3p^4$
(C) $\left[Ne\right]3s^{2}3p^5$
(D) $\left[Ne\right]3s^{2}3p^2$