Ionisation Energies
The Ionisation Energy is the energy require to remove an electron from a gaseous atom or ion at stp. There can be multiple ionisation energies, such as: First Ionisation Energy:…
Putting Electrons in Shells
The periodic table contains a lot of information. The numbers of the neutrons, electrons and protons can all be found using such information. Proton Number = Atomic number Neutron Number = Mass…
Diagonal Relationship
Diagonal relationship A relationship within the periodic table by which certain elements in the second period have a close chemical similarity to their diagonal neighbours in the next group of…