What charge do electrons have?
What two things are found in the nucleus?
Protons and neutrons
What is the relative mass of Protons neutrons and electrons?
Isotopes have the same number of ____ and a different number of ___?
Same number of protons, different number of neutrons
Relative mass is always compared to what?
Carbon - 12
Relative mass can be measured using what?
Name the four main parts in a mass spectrometre.
What are the 3 steps when working out the isotopic abundance from a mass spectrum?
1 - For each peak read the x and y axis and mutiply them together
2 - Add up all the totals.
3 - Divide by 100
What are the three types of nuclear radiation?
Alpha, beta, Gamma
What are alpha paricles?
What are beta particles?
Fast moving electrons
What are gamma rays?
Very short wave electromagnetic waves
What is the deflection of gamma rays?
There is no defelction