Elements and Compounds are ______ substances.

The symbolic representation of a compound is called its

Atoms of same elements are

Noble gases have _________ molecules.

Two or more atoms of the same element combine to form molecules of

_______ represents the element hydrogen.

________ are inert gases.

A non - metal which is a good conductor of heat and electricity is

Molecules formed from smaller particles are called

The number of atoms of an element that can join together to form a molecule of that element is known