Question

The electronic configuration of element A, B and C
are [He] 251
[Ne] 3s
1 and [Ar] 451 respectively. Which one of the
following is correct order for IE2 (in kJ mol-1) of A, B
and C?
O C>A>B
C>B>A
B> C >A
A>B>C

Answer 1

Answer:

A >B>C is the answer i think