Which of the order for ionisation energy is correct - Vidyadip

MCQ

Which of the order for ionisation energy is correct

A
$Be > B > C > N > O$
✓
$B < Be < C < O < N$
C
$B < Be < C < N < O$
D
$B < Be < N < C < O$

✓

Answer

Correct option: B.

$B < Be < C < O < N$

b
(b) Ionisation energy increases across the period but due to stable half filled configuration of $VA$ group, its $I.E.$ is more than $VI-A$ group.

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