Question

b. Calculate the valency of Sodium (Z=11), Carbon (Z=4) and chlorine (Z=17)​

Answer 1

Explanation:

The valency of an element is a measure of its combining capacity and can be defined as the number of electrons that must be lost or grained by an atom to obtain a stable electron configuration.

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Answer 2

Answer:

Valency of Sodium (1), carbon (4) and chloride (1).

Explanation:

Valency of Sodium (Z=11)

Distribution of Electrons is 2, 8, 1

So, 1 + 8 = 8

Valency of Sodium is 1 or (+8)

Valency of Carbon (Z=6)

Distribution of Electrons is 2, 4

So, 4 + 4 = 8

So, Valency of Carbon is 4

Valency of Chlorine (Z=17)

Distribution of Electrons is 2, 8, 7

So, 7 + 1 = 8

Valency of Chlorine is (+1) or 7