Atoms Atoms Atoms

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 are the three main particles of an atom?

Back

Protons, neutrons, and electrons.

Front

Where is the nucleus located in an atom?

Back

The nucleus is located at the center of the atom.

Front

What particles are found in the nucleus of an atom?

Back

Protons and neutrons.

Front

What is the charge of a neutron?

Back

Neutrons have no charge; they are neutral.

Front

What is the charge of an electron?

Back

Electrons have a negative charge.

Front

What is the mass of a proton compared to an electron?

Back

A proton is much heavier than an electron.

Front

What is the overall charge of an atom?

Back

An atom is neutral because it has equal numbers of protons and electrons.

Front

What is the role of protons in an atom?

Back

Protons determine the identity of the element and its atomic number.

Front

What is the role of electrons in an atom?

Back

Electrons are involved in chemical bonding and reactions.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

NGSS.HS-PS1-4