Question

write the valency of sodium and chemical​

Answer 1

ANSWER

The atomic number of sodium is 11 (Z=11). ... Hence, the valency of sodium is 1.

Answer 2

Answer:

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The atomic number of sodium is 11 (Z=11). ... Hence, the valency of sodium is 1. Atomic number of aluminium is 13 so its electronic configuration is 2, 8, 3. Since it has 3 electrons in its valence shell, it will lose 3 electrons to complete its octet hence its valency is +3.

Explanation:

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