Question

4(a) What kind of valency do non-metals generally have?

Answer 1

• The combining capacity of an atom is known as its valency.
• By gaining, sharing, and losing the electrons the atoms complete their outermost shell and make an octet.
• The non-metals have four to seven electrons in their outermost shell, due to which they tend to accept electrons from other elements to get eight electrons in their outermost shell to attain the stable octet configuration.
• After accepting electrons, the number of electrons becomes more than the number of protons present in their nucleus and forms a negative ion.
• Hence, non-metals generally have electronegative valency.