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.

Tags

NGSS.MS-PS1-1

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a molecule?

Back

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

Tags

NGSS.MS-PS1-1

Front

What is a compound?

Back

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

Tags

NGSS.MS-PS1-1

Front

What charge do protons have?

Back

Protons have a positive charge.

Front

What charge do electrons have?

Back

Electrons have a negative charge.

Tags

NGSS.MS-PS2-3

Front

What charge do neutrons have?

Back

Neutrons have no charge (they are neutral).

Front

How many protons are in a hydrogen atom?

Back

A hydrogen atom has 1 proton.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H2O.

Tags

NGSS.MS-PS1-1

Front

What is the difference between an atom and an element?

Back

An atom is a single unit of matter, while an element is a substance made up of only one type of atom.