The atomicity of Na is 1. What does it mean?

It has one electron in its valance shell.

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It has one atom each in their molecules

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It can combine with the element having valency 1.

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Both B and C.

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Solution

The correct option is B
It has one atom each in their molecules

Atomicity of an element is defined as the number of atoms present in one molecule of an element. Hence option B is correct.

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The atomicity of Na is 1. What does it mean?

The correct option is B It has one atom each in their molecules Atomicity of an element is defined as the number of atoms present in one molecule of an element. Hence option B is correct.

The correct option is B
It has one atom each in their molecules

Atomicity of an element is defined as the number of atoms present in one molecule of an element. Hence option B is correct.