11. Why is the first ionization energy of a nonmetal much higher than that of an alkali metal in its same period

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Chemistry

Noemi Ruiz

27 January, 01:03

11. Why is the first ionization energy of a nonmetal much higher than that of an alkali metal in its same period

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Jaida · Answer 1

Well, nonmetals have more filled shells, making it harder to remove electrons, AND n onmetals have smaller atoms, while metals have larger atoms and therefore less attraction of the electrons to the nucleus. The nuclear charge increases from left to right across a period and the shielding effect stays the same. So it is more difficult to remove an electron from a nonmetal than an alkali metal.; 3