Question

Define valency. What is the valency of the element with atomic number 8? What is the compound format by this element with hydrogen?

Answer 1

valency

1. Valency is defined as the combining capacity of an element.
2. Valency of the element with atomic number: 8 Name of the element:

Oxygen : 0
Atomic number: 8
Valency: 2
Water (H₂O) is the Oxide of Hydrogen and most familiar oxygen compound