Atomic Structure

Front

All matter is made of _________.

Back

atoms

Front

The volume of an atom is made up of mostly ____

Back

empty space

Front

What is at the center of every atom?

Back

A nucleus

Front

A neutron has _________ charge or is ________.

Back

no ... neutral

Front

An electron has a _________ charge

Back

negative

Front

What are the three main subatomic particles?

Back

Protons, Neutrons, Electrons

Front

What is the charge of a proton?

Back

positive

Front

What is the mass of an electron compared to a proton?

Back

Much smaller, approximately 1/1836 of a proton.

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.