Periodic Classification And Periodic Properties Ques 11
11. Amongst the following elements (whose electronic configurations are given below), the one having the highest ionisation energy is
(a) $[\mathrm{Ne}] 3 s^{2} 3 p^{1}$
(b) $[\mathrm{Ne}] 3 s^{2} 3 p^{3}$
(c) $[\mathrm{Ne}] 3 s^{2} 3 p^{2}$
(d) $[\mathrm{Ar}] 3 d^{10} 4 s^{2} 4 p^{3}$
$(1990,1 \mathrm{M})$
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Answer:
Correct Answer: 11.(d)
Solution:
- $[\mathrm{Ne}] 3 s^{2} 3 p^{3}$ has highest ionisation energy, periodic trend.
BETA
