Question

Define Valency, How valence electrons take an important role in to form compounds. Explain with two examples​

Answer 1

$\Huge\sf\underline\blue{Answer}$

In chemistry, the valence or valency of an element is the measure of its combining capacity with other atoms when it forms chemical compounds or molecules

are most likely to be involved in chemical bonding. When elements react to form compounds valence electrons may be transferred from one atom or another or to be shared between atoms.

Answer 2

Answer:

Hope it helps

Explanation:

Valency is the combining capacity of an element. Valency is the number of atoms that an element gains, looses or shares to become stable in an reaction to form compounds

If an element has 1,2,3 valence electrons then it will loose 1,2,3 electrons to become stable and complete the octate rule. it valency would be 1,2,3 respectively. Eg - Na = 1 e- , Cl = 7 e- ; here Na looses 1 electron and Cl gains 1 electron and both become stable.

Similarly element having 4 valence electrons share and element having 5,6,7 valence electrons gain 1,2,3 electrons to become stable.

Please marks as brainliest and do thanks