A sodium atom contains a total number of 11 electrons. The valency of sodium atom is __

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Solution

The correct option is C 1

Sodium has 11 electrons and its configuration is 2,8,1. It has 1 electron in its valence electron.

So, it will lose an electron to form a sodium cation and attain the electronic configuration of Neon gas (2,8).

Thus, the valency of sodium is 1.

Therefore, the correct option is d.

Suggest Corrections

Similar questions

The valence of Sodium with atomic number 11 is _____.

({N a}^{+})

(O^{2 -})

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