Interpretation: The reason for one electron in a potassium atom to go to the fourth energy level but not to the third energy level where 8 electrons are already there.
Concept introduction: The electron configuration explains the electron distribution in atomic orbitals. There is a standard notation to write an electron configuration. The atomic shell is written in a sequence with the number of electrons in superscript.
Answer to Problem 13LC
Due to complete octet.
Explanation of Solution
The
Here, one electron is in the 3s sublevel because there are already 8 electrons in the third energy level.
For any sublevel, there is a maximum number of electrons possible. An s orbital can maximum hold 2 electrons and a p orbital can maximum hold 6 electrons. Since there is a maximum number of electrons already there in the 2s and 2p orbitals, thus, a new electron goes into the fourth energy level that is 3s .
The third level has a complete octet, thus, the next electron goes into the fourth energy level.
Chapter 5 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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