One atom of …….. combines with one atom of bromine.

One atom of hydrogen combines with one atom of chlorine and so the valency of chlorine is ……………… .

Which of the following elements will form a compound with oxygen in which one atom of the element is combined with one atom of oxygen to form an oxide of formula MO ?

The ability of carbon atoms to combine with one another to form long chains, branched chains and rings is known as______

How many oxygen atoms combine with one carbon atom?

2p_(z) orbital of one atom do not combine with 2p_(x) orbital of another atom because of their __________.

2p_(z) orbital of one atom do not combine with 2p_(x) orbital of another atom because of their __________.