Structure of the atom

Front

A chemical symbol represents the _________ of an element.

Back

name

Front

When an atom contains more electrons than protons, it is __________.

Back

an ion and negatively charged

Front

The nucleus is ____________ charged.

Back

positively

Front

When an atom contains more neutrons than another atom, it is __________.

Back

an isotope and has more mass

Front

If a neutral atom has 8 protons, how many electrons does it have?

Back

8

Front

What are the three main subatomic particles of an atom?

Back

Protons, Neutrons, Electrons

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of a neutron?

Back

Neutral

Front

What is the charge of an electron?

Back

Negative

Front

What is an ion?

Back

An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.