Question

How we can do valeny in practical

Answer 1

Answer:

please mark me as brainliest

Explanation:

The valency of an atom is equal to the number of electrons in the outer shell if that number is four or less. Otherwise, the valency is equal to eight minus the number of electrons in the outer shell. Once you know the number of electrons, you can easily calculate the valency.

Answer 2

Answer:

we can observe the reaction taking place of an atom and know valency

Explanation:

valency is the no of electrons which an atom can gain or lose

hydrogen can share one electron or donate one electron and its valency is 1