Question #30208

1 Answer
Deevona
Apr 19, 2015

I would circle this answer:

Cl, Ar, #K^+#.

Here is the explanation:

The ionization energy of an atom (molecule) describes the minimum amount of energy required to remove an electron from the atom (molecule) in the gaseous state.

Great picture below. Ionization potentials of atoms and ions.

www.physics.ohio-state.edu

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