Atomic Structure

Front

How many electrons are in a gold atom?

Back

A gold atom has 79 electrons.

Front

How many electrons does a copper atom have?

Back

A copper atom has 29 electrons.

Front

How many neutrons are in a gold atom?

Back

A gold atom has 118 neutrons.

Front

Which two particles make up the nucleus of an atom?

Back

The nucleus of an atom is made up of protons and neutrons.

Front

Isotopes of an element have different numbers of _____?

Back

Isotopes of an element have different numbers of neutrons.

Front

What is the charge of a proton?

Back

A proton has a positive charge.

Front

What is the charge of a neutron?

Back

A neutron has no charge (neutral).

Front

What is the charge of an electron?

Back

An electron has a negative charge.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in the nucleus.