Have your periodic table ready!

Draw the model of an atom, labelling the three subatomic particles within it.

How many protons does a Carbon atom have?

How many neutrons does a Carbon atom have?

How many electrons does a Carbon atom have?

State the chemical symbols of all the group III elements.

Which of the following is a compound?

• oxygen

• carbon dioxide

• helium

• hydrogen

State the difference between an element and a compound.

Valency is the _________ _____ of an atom.

What is the chemical symbol of nitrate?

What is the chemical formula of table salt?