Chemistry, asked by csstock166, 1 year ago

why the first-ionization energy K is less than that of Ca.

Answers

Answered by Thûgłife
8

Explanation:

The first ionization energy for K is less than Ca because Ca has a larger effective nuclear charge. There is a large increase in the second ionization energy for K compared to Ca because removal of the second electron from K is a core electron that is in a quantum shell closer to the nucleus.

Answered by backtoend74
4

Answer:

The first ionization energy for K is less than Ca because Ca has a larger effective nuclear charge. There is a large increase in the second ionization energy for K compared to Ca because removal of the second electron from K is a core electron that is in a quantum shell closer to the nucleus.

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