Question

define the valency? so give valency of cu & fe​

Answer 1

Valency is the combining capacity of the atom of an element. It is equal to the number of electrons an atom candonate or accept or share. Copper and iron shows more than onevalency which is also known as variable valency. Therefore, copper shows valencies 1 and 2 : Cu+, cuprous

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Answer 2

Answer:

valency is the combining capacity of an element or a radical

for ex-in water molecule ,one atom of oxygen combine s with 2 ATOMS of hydrogen hence valency of oxygen is 2