Atoms, Molecules, Elements, Compounds #2

Front

What is an atom?

Back

The smallest unit of matter that retains the properties of an element.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

What is an element?

Back

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

Front

What is a compound?

Back

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

Front

What is the nucleus of an atom?

Back

The central part of an atom that contains protons and neutrons.

Front

What are protons?

Back

Positively charged particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutral particles found in the nucleus of an atom.

Front

What are electrons?

Back

Negatively charged particles that orbit the nucleus of an atom.

Front

How many protons are in a carbon atom?

Back

6 protons.

Front

What is the chemical formula for water?

Back

H₂O.