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Electronic configuration

The correct e...

Question

The correct electronic configuration for sodium ion is:

A

2, 8, 1

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B

2, 8

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C

2, 8, 8, 1

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D

2, 8, 7

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Solution

The correct option is B
2, 8

Atomic number of sodium is 11 so its electronic configuration will be 2, 8, 1. But sodium ion is formed by the loss of an electron so its electronic configuration is 2, 8.

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Q. Assertion: Sodium Metal is reactive where as Sodium Ions aren't reactive.

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Q. Question 18
Which one of the following is the correct electronic configuration of sodium?

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(b) 8, 2, 1
(c) 2, 1, 8
(d) 2, 8, 1

Q. Element 'A' has electronic configuration

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