Atoms and Molecules

Front

What is the charge of a neutron?

Back

A neutron has no charge.

Front

How many times 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

How many atoms are in a molecule of water?

Back

A molecule of water is made up of 3 atoms.

Tags

NGSS.MS-PS1-1

Front

What is the charge of a proton?

Back

A proton has a positive charge.

Front

What is an element?

Back

An element is a substance that is made up of only one type of atom.

Front

What is the atomic structure of an atom?

Back

An atom consists of protons, neutrons, and electrons.

Tags

NGSS.MS-PS1-1

Front

What is the role of electrons in an atom?

Back

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

Tags

NGSS.HS-PS1-2

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom, containing protons and neutrons.

Tags

NGSS.MS-PS1-1

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of two or more atoms bonded together.

Tags

NGSS.MS-PS1-1

Front

What is the significance of the atomic number?

Back

The atomic number indicates the number of protons in an atom and determines the element's identity.