5 5. What is the electron configuration of the Al3* ion?1s'2s'2p61s°2s°2p°3s°3p*b. 1s'2s°2p°3s?3p!d. 1s²2s?2p°3s?3pa.С.

Answered: 5. What is the electron configuration…

Introductory Chemistry: A Foundation

8th Edition

ISBN:9781285199030

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter11: Modern Atomic Theory

Section: Chapter Questions

Problem 105AP

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5. What is the electron configuration of the Al3* ion?
1s'2s'2p6
1s°2s°2p°3s°3p*
b. 1s'2s°2p°3s?3p!
d. 1s²2s?2p°3s?3p
a.
С.

Expert Solution

Step 1

An atom is composed of three main sub-atomic particles; electrons, neutrons and protons. The atomic number of the elements represents the number of protons or electrons in a neutral atom. All known elements are arranged in a tabular form in increasing order of their atomic number that is called as the periodic table.

Step 2

The distribution of electrons in an atom can be shown with the help of electronic configuration. The electronic configuration of an element represents the number of electrons in different energy levels of an element.

Step 3

The atomic number of Al is 13 thus, the electronic configuration must be;

1s², 2s², 2p⁶ 3s², 3p¹

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