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Chemistry
Chemistry
Problem
Which of the following possesses highest second ionisation energy: a.
1
s
2
,
2
s
2
2
p
6
,
3
s
2
1s^2, 2s^2 2p^6, 3s^2
1
s
2
,
2
s
2
2
p
6
,
3
s
2
b.
1
s
2
,
2
s
2
2
p
6
,
3
s
1
1s^2, 2s^2 2p^6, 3s^1
1
s
2
,
2
s
2
2
p
6
,
3
s
1
c.
1
s
2
,
2
s
2
2
p
3
1s^2, 2s^2 2p^3
1
s
2
,
2
s
2
2
p
3
d.
1
s
2
,
2
s
2
2
p
4
1s^2, 2s^2 2p^4
1
s
2
,
2
s
2
2
p
4
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