Question

valency is the combining capacity of an element valency of some elements are given below: hydrogen -1 ,magnesium -2, aluminium -3 ,and carbon -4 analyse the given information and calculate the valencies of helium(He), phosphorus(p), sulphur(s) and neon(Ne)​

Answer 1

Hey there ☺

Answer:

Valence of

1. helium = 0

2. phosphorous = 3

3. sulphur = 2

4. neon = 0

Answer 2

Helium is 0 because it has its last electron shell full.

Phosphorus is 3 or 5.

Sulphur is 2.

Neon is 0.

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