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the complete electron configuration of mg is , whereas the complete electron configuration of al is .target 1 of 7 target 2 of 7 removing an electron from the orbital of mg requires energy than removing an electron from the orbital of al .target 3 of 7 target 4 of 7 target 5 of 7 however, when adding an electron, the electron affinity for mg is negative than that of al because the electron is being added to sublevel.

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Electronic configuration Mg(12) = 1s22s22p63s2

Al(13) = 1s22s22p63s23p1

Mg has a more stable configuration and hence requires more energy to remove an electron from 3s. electron affinities become more negative from left to right across a row in the periodic table.

The complete electronic configuration of Mg is 1s22s22p63s2 whereas the complete electronic configuration of Al is 1s22s22p63s23p1

Removing an electron from the 3s orbital of Mg requires more energy than removing an electron from the 3p orbital of Al.

However, when adding an electron, the electron affinity for Mg is less negative than that of Al because the electron is being added to the 3p sublevel.

The symbols used to describe electron configurations begin with the shell number, followed by the orbital type, and finally, a superscript indicating the number of electrons in the orbital. Electron configuration describes where electrons are located around the nucleus. The outermost shell of an atom can hold up to 8 electrons.

Learn more about Electronic configuration here:- https://brainly.com/question/13605318

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