Atoms, Elements, Molecules, Compounds V2

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What is an element?

Back

An element is a pure substance that consists of only one type of atom.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements are chemically bonded together.

Front

What distinguishes one element from another?

Back

The number of protons in the nucleus of an atom distinguishes one element from another.

Front

What are protons?

Back

Protons are positively charged particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom.

Front

What are electrons?

Back

Electrons are negatively charged particles that orbit the nucleus of an atom.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H2O.

Front

What is the chemical formula for carbon dioxide?

Back

The chemical formula for carbon dioxide is CO2.