Topic 3

Front

What is a mixture?

Back

A combination of different things.

Front

What is gold (Au)?

Back

An element.

Front

Which of the following is an element? Air, Water, Salt, Oxygen

Back

Oxygen.

Front

Which particles are found in the nucleus?

Back

Protons and neutrons.

Front

Both elements and compounds are pure substances. AGREE or DISAGREE?

Back

AGREE.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

What is the smallest unit of an element?

Back

An atom.

Front

What is the Periodic Table?

Back

A tabular arrangement of elements organized by increasing atomic number.

Front

What are protons?

Back

Positively charged particles found in the nucleus of an atom.