Atoms & Molecules

Front

What is an atom?

Back

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

Tags

NGSS.MS-PS1-1

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Tags

NGSS.MS-PS1-1

Front

How many atoms are there in a molecule?

Back

2 to thousands of atoms.

Tags

NGSS.MS-PS1-1

Front

What is a compound?

Back

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

Tags

NGSS.MS-PS1-1

Front

Are all molecules compounds?

Back

No, not all molecules are compounds; some are made of the same type of atom.

Front

How many hydrogen atoms are in a water molecule?

Back

2 hydrogen atoms.

Tags

NGSS.MS-PS1-1

Front

What shape does table salt form?

Back

Cube.

Front

What is an element?

Back

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

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What is the difference between an element and a compound?

Back

An element is made of one type of atom, while a compound is made of two or more different types of atoms.

Tags

NGSS.MS-PS1-1