The number of atoms present in the molecule of an element is called its

The formula of a molecule of Oxygen is

_____________ is a non-metal which is a good conductor of electricity.

A ____________ is the short way of representation of the molecule of an element or a compound.

The element _____________ is present in the chlorophyll pigment in plants.

A/An ____________ is the smallest unit of a compound.

The properties of a compound are different from the properties of its constituent elements.

Pick the odd one out -

a) Iron b) Copper c) Zinc d) Silver

When two or more atoms of the same element combine, they form the molecule of a/an ____________.

The chemical formula of Calcium sulphide is

The valency of inert gases is

Metals are used to make bells.

________ is a non-malleable metal.

_______ is a soft metal.

The element _________ forms a polyatomic molecule.

Ozone is an example of a ___________ molecule.

There is no change in energy during the formation of a compound.

The smallest unit of an element is a/an ________.

Pure substances have

What is common salt?

The valency of Neon is 1

____________ is a non-lustrous metal.

_________ is an extremely hard non-metal.

________ show some properties of metals and some properties of non-metals.