Question

models of Thomson Unu Ilu
b. What is meant by Valency of an element?
What is the relationship between the
number of valence electron and valency?​

Answer 1

Explanation:

Valency of a substance is the number of electrons gain share or lost by an atom to achieve the electronic configuration of the nearest noble gas

Valence electron has a strong relationship with the valency.to find the valency of an atom write its electronic configuration if the valence shell has either 1,2,3or4 valence electrons then the valency will be the same as a number of valence electron and if the vvalence shell has 5 6 7 or8 electrons then the valency can be found by subtracting the no Valence electron from 8 the result will be the valency of the atom.

Answer 2

Answer:

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