Ionization energy is the energy required to remove an electron from an atom. Which atom from the list below would be the most difficult to remove an electron from?

Ionization energy is the energy required to remove an electron from an atom Which atom from the list below would be the most difficult to remove an electron fro class=
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Answer:

Chlorine

Explanation:

Chlorine needs 1 electron to have a complete shell, the energy required for it to gain more electron will be very high.

Therefore, the it will be very hard for it to lose its electrons .