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Consider the following list of electron ...

Consider the following list of electron configurations:
(1) `1s^(2)2s^(2)3s^(2)` (2) `1s^(2)2s^(2)2p^(6)`
(3) `1s^(2)2s^(2)2p^(6)3s^(1)` (4) `1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^(2)`
(5) `1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^(2)3d^(6)`
Which one of the above configuration represents a neutral atom that readily forms a singly charged positive ion?

A

1

B

3

C

2

D

4

Text Solution

Verified by Experts

The correct Answer is:
B
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