MCQ
Amongst the following elements, the highest ionization energy is
- A$[Ne]\,3s^2\,3p^1$
- ✓$[Ne]\,3s^2\,3p^3$
- C$[Ne] \,3s^2\,3p^2$
- D$[Ar]\,3d^{10} \,4s^2\, 4p^3$
✓
Answer
Correct option: B.
$[Ne]\,3s^2\,3p^3$
b
The IE increases along a period and decreases down the group. Also, IE of 15 is more than group 16 as group 15 has half-filled p subshell giving extra stability.
The IE increases along a period and decreases down the group. Also, IE of 15 is more than group 16 as group 15 has half-filled p subshell giving extra stability.
Thus among given option highest IE is of option B i.e. $[N e] 3 s^{2} 3 p^{3}$.
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