Atoms and Bohr models

Front

What is an atom?

Back

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

Front

What are the three main particles that make up an atom?

Back

Protons, neutrons, and electrons.

Front

What charge do protons have?

Back

Positive charge.

Front

What charge do electrons have?

Back

Negative charge.

Front

What is the charge of neutrons?

Back

Neutrons have no charge (neutral).

Front

Where are protons and neutrons located in an atom?

Back

In the nucleus at the center of the atom.

Front

Where are electrons located in an atom?

Back

In the electron cloud surrounding the nucleus.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

How many valence electrons does an Oxygen atom have?

Back

6 valence electrons.

Front

What is the Bohr model of the atom?

Back

A model that depicts electrons orbiting the nucleus in defined paths or energy levels.