Question

define valency by taking example silicon and oxygen

Answer 1

Answer

Oxygen carry 2 valency
Silicon carry 4 valency

Answer 2

$\mathbb{\huge{\purple{HEY\:MATE}}}$

$VALENCY:-$ The tendency of atom to complete its octate obtained and do follow the noble gas on behalf of the respective .

Silicon- The valence electron present within silicon is 8, and in order to have a complete octane, it either needs to lose or gain four electrons. Therefore vance is 4...❤❤