Ionisation of an atom is the process in which the subatomic particle, the , is removed. The outermost particle will have the binding energy, and so will be most to remove. As the particles are taken away, the energy increases, increasing the amount of energy required.

Insert a number, eg 1, 4, 26, 32. If no electrons, put in 0.
How many electrons in each shell:
Magnesium:
1st:
2nd:
3rd:
4th:
5th:

Insert a number, eg 1, 4, 26, 32. If no electrons, put in 0.
How many electrons in each shell?
Cl-
1st:
2nd:
3rd:
4th:

What is the maximum number of electrons an atom can have in the 2nd shell?

What is the electronic configuration of Argon?
Eg: 6,9,12,14 (no spaces, just commas)