Atoms and Elements

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What do chemists use letters of the alphabet for?

Back

Chemists use letters of the alphabet as symbols for the elements.

Front

What is the chemical symbol for Carbon?

Back

C

Front

What are the three particles that make up an atom?

Back

Protons, neutrons, and electrons.

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.HS-PS2-4

Front

What charge do neutrons have?

Back

Neutrons have no charge (they are neutral).

Front

Where are protons located in an atom?

Back

Protons are located in the nucleus of an atom.

Front

Where are electrons located in an atom?

Back

Electrons are located in energy levels or shells around the nucleus.

Front

What is the nucleus of an atom?

Back

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