Question

write a short note on significance of valence electron and valency​

Answer 1

Answer:

The valence electrons of an atom are responsible for and take part in chemical change.

The number of electrons in atom that actually take part in a chemical reaction is known as the valency of the element. ... If the outermost shell of an atom is completely filed, its valency = 0.

Answer 2

Answer:

The valence electrons of an atom are responsible for and take part in chemical change. The number of electrons in atom that actually take part in a chemical reaction is known as the valency of the element. ... If the outermost shell of an atom is completely filed, its valency = 0.

hope it helps...

MARK AS BRAINLIEST