Chemistry, asked by anjuribalaji, 4 months ago

how solve valency for 20 elements

Answers

Answered by jaahnavi59

1

Answer:

Valency of first 20 elements is given below.

Hydrogen (H) = 1.

Helium (He) = 0.

Lithium (Li) = 1.

Beryllium (Be) = 2.

Boron (B) = 3.

Carbon (C) = 4.

Nitrogen (N) = 3.

Oxygen (O) = 2.

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