MCQ
$N{a^ + }$ion is isoelectronic with
- A$L{i^ + }$
- ✓$M{g^{ + 2}}$
- C$C{a^{ + 2}}$
- D$B{a^{ + 2}}$
Electrons in $M{g^{2 + }} = 12 - 2 = 10$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

| $(n)$-$(l)$-$(m)$-$(s)$ | |
| $(i)$ | $(3)$-$(2)$-$(1)$- $(+1/2)$ |
| $(ii)$ | $(2)$-$(2)$-$(1)$- $(+1/2)$ |
| $(iii)$ | $(4)$-$(3)$-$(-2)$- $(-1/2)$ |
| $(iv)$ | $(1)$-$(0)$-$(-1)$- $(-1/2)$ |
| $(v)$ | $(3)$-$(2$-$(3)$- $(+1/2)$ |
Which of the following sets of quantum number is not possible ?