Using axis sketch a graph to show the successive ionization energies of flourine
At first, fluorine ionisation energies increase because once you have removed the first electron you are left with a positive ion. Trying to remove a negative electron from a positive ion is going to be more difficult than removing it from an atom. Removing an electron from a 2+, 3+, etc ion is going to be progressively more difficult. A big jump between two successive ionisation energies occurs due to breaking in to an inner (1s) level.
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