What happens to the energy needed to remove an electron as the atomic number increases across a period?

Question

Chemistry

Kaiya Payne

8 June, 02:09

What happens to the energy needed to remove an electron as the atomic number increases across a period?

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Answers (1)

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Demarcus Rowland · Answer 1

In general, the energy needed to remove an electron (the ionization energy) increases as the atomic number increases across a period.

Explanation:

Each additional proton increases the attraction between the nucleus and the electron.

Thus, it takes more energy to remove an electron as you add extra protons.