Atoms

The ____________is the number of protons in the nucleus.

What is the only subatomic particle with no charge?

Which ancient Greek philosopher first said there would be a piece of matter too small to cut?

This is the center of any atom

Which scientist was the first to use experiments to support the atomic theory?

This is a sub-atomic particle with a positive charge

Atoms that gain an electrical charge from adding or removing electrons are called...

What is the smallest bit of matter that is still matter?

Atoms are measured in AMU. What does AMU stand for?

What strong force actually holds the nucleus of an atom together?

Atoms with the same amount of protons but different amounts of neutrons are called...

Which scientist shot charged particles at gold foil and proved the existence of the nucleus?

What is the smallest sub-atomic particle?

This subatomic particle has the same mass as a proton.

You can find the _______________by adding the number of protons and neutrons in an atom.

This is a negatively charged subatomic particle

What is the name of the theory that all matter is made of atoms?

Which scientist showed that atoms are made of sub-atomic particles?