AQA Higher Tier Chemistry Ppaer

Front

Atom

Back

The smallest part of an element that can still be recognised as that element

Front

Element

Back

A substance made of only one type of atom

Front

compound

Back

A substance made of two or more different atoms chemically bonded together

Front

Molecule

Back

A substance made of more than one atom chemically bonded together (can be atoms of the same type!)

Front

Define mixture.

Back

A substance made of more than one thing not chemically bonded together

Front

Define a chemical reaction.

Back

Chemical reactions involve the formation of one or more new substances.

Front

Name the 4 separating techniques.

Back

filtration, crystallisation, distillation, chromatography

Front

State the three subatomic particles.

Back

Protons, neutrons, electrons

Front

Relative charges of subatomic particles.

Back

Protons: +1, neutrons: 0, electrons: -1

Front

How are the subatomic particles arranged in an atom?

Back

Protons and neutrons in the nucleus, electrons orbiting in shells