Periodic Classification and Periodic Properties - Result Question 20
####17. Amongst the following elements (whose electronic configurations are given below), the one having the highest ionisation energy is
(a) $[Ne] 3 s^{2} 3 p^{1}$
(b) $[Ne] 3 s^{2} 3 p^{3}$
(c) $[Ne] 3 s^{2} 3 p^{2}$
(d) $[Ar] 3 d^{10} 4 s^{2} 4 p^{3}$
$(1990,1 M)$
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Answer:
Correct Answer: 17. (d)
Solution:
- $[Ne] 3 s^{2} 3 p^{3}$ has highest ionisation energy, periodic trend.
