|What subatomic particles are found in the nucleus?
|Protons and Neutrons
|What charge is the nucleus?
|Where are electrons found?
|The outer electron shells
|What's the relative mass and charge of a proton?
|Relative mass - 1 Charge - +1
|What's the relative mass and charge of a neutron?
|Relative mass -1 Charge - 0
|What's the relative mass and charge of an electron?
|Relative mass - so small it's essentially 0 Charge = -1
|Why are atoms neutral?
|They have the same number of protons and electrons so the opposite charges cancel out.
|Why are ions charged?
|The number of protons doesn't equal the number of electrons
|What does the atomic number tell you?
|How many protons there are
|What does the mass number tell you?
|Total number of protons and neurons in an atom
|How do you calculate the number of neutrons in an atom?
|Mass number - atomic number