G6 U1: Matter Review

Front

What does the atomic number tell you?

Back

The atomic number tells you the number of protons and electrons in an atom.

Front

What is all matter made of?

Back

All matter is made of atoms.

Front

What part of the atom determines its identity?

Back

The proton determines the identity of the atom.

Front

What is the sum of the protons and neutrons in the nucleus of an atom called?

Back

The sum of the protons and neutrons in the nucleus of an atom is called the Mass Number (also called Atomic Mass).

Front

What charge does a neutron have?

Back

A neutron has no charge.

Front

What are the three main subatomic particles?

Back

The three main subatomic particles are protons, neutrons, and electrons.

Front

What is the charge of a proton?

Back

A proton has a positive charge.

Front

What is the charge of an electron?

Back

An electron has a negative charge.

Front

Where are protons and neutrons located in an atom?

Back

Protons and neutrons are located in the nucleus of an atom.

Front

What is the difference between atomic mass and mass number?

Back

Atomic mass is the weighted average of an element's isotopes, while mass number is the total number of protons and neutrons in an atom.