Atoms and Molecules

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom where protons and neutrons are clumped together.

Tags

NGSS.MS-PS1-1

Front

Which atom is the simplest?

Back

Hydrogen is the simplest atom, consisting of only one proton and one electron.

Front

What subatomic particle has a negative charge?

Back

The electron is the subatomic particle that has a negative charge.

Front

How much smaller are atoms compared to the width of a hair?

Back

Atoms are more than 10,000 times smaller than the width of a hair.

Front

What subatomic particle has a positive charge?

Back

The proton is the subatomic particle that has a positive charge.

Front

What are atoms made of?

Back

Atoms are made of protons, neutrons, and electrons.

Tags

NGSS.MS-PS1-1

Front

What is the charge of a neutron?

Back

A neutron has no charge; it is neutral.

Front

What is the role of electrons in an atom?

Back

Electrons orbit the nucleus and are involved in chemical bonding.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is a molecule?

Back

A molecule is formed when two or more atoms bond together.

Tags

NGSS.MS-PS1-1