Front

What is the charge of a neutron?

Back

Neutrons have no charge.

Front

What is the charge of an electron?

Back

Electrons have a negative charge.

Front

Where are neutrons located in an atom?

Back

Neutrons are located in the nucleus of an atom.

Front

Where are electrons located in an atom?

Back

Electrons are located outside the nucleus in electron shells.

Front

What is a period in the periodic table?

Back

A horizontal row of elements in the periodic table.

Front

What is an atom?

Back

The smallest particle of an element that retains its properties.

Front

What is an element?

Back

A substance that cannot be broken down into simpler substances by chemical or physical means.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

How many protons does an element with atomic number 17 have?

Back

17 protons.

Front

How many electrons does an element with atomic number 17 have?

Back

17 electrons.