Isotope
Different atomic forms of the same element, which have the same number of protons but different number of neutrons
Proton relative mass
1
Neutron relative mass
1
Electron relative mass
1/1836
Proton relative charge
+1
Neutron relative charge
0
Electron relative charge
-1
Atomic number
Number of protons
Number of electrons equals
Number of protons
Mass number
Number of protons and neutrons
How do you work out the number of neutrons
Mass number - number of protons
What is the relative atomic mass
average mass of the isotopes of the element
Silver charge
Ag+
Copper charge
Cu2+
Iron charge
Fe2+ or Fe3+
Zinc charge
Zn2+
Lead charge
Pb2+