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Valency

Sodium Na has...

Question

Sodium (Na) has 11 electrons in its atom. Its electronic configuration is:

A

Na (1,2,8)

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B

Na (2,9)

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C

Na (2,5,4)

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D

Na (2,8,1)

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Solution

The correct option is D Na (2,8,1)
The atomic number of sodium (Na) is 11. Hence, it has 11 electrons and protons in its atom. The electonic configuration of sodium is Na (2,8,1).

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