Particles

What particles make up an atom?

Protons, neutrons and electrons

What are nucleons?

Protons and neutrons in the nucleus

What are the relative charges of protons, neutrons and electrons?

Proton +1, neutron 0, electron -1

What are the relative masses of protons, neutrons and electrons?

Proton 1, neutron 1, electron 0.00005

What is the z number for the atom diagram?

The number of protons in a nucleus

What is the A number in the atom diagram?

The total number of protons and neutrons.

Define isotopes

Atoms with the same proton number but different neutron number

Why do isotopes have the same chemical properties?

They have the same electron arrangement

How does carbon - 14 dating work?

The remaining carbon - 14 in dead organic matter is used to estimate its age

What is specific charge and what is its unit?

It is the charge over mass and it’s measured in C per kg