Electron configuration is the arrangement of electrons in the skin and sub-skin within the atoms of an element. Rules laying electrons follow the following rules:
a. AUF principle BAU
Electrons in an atom are filled starting from the lowest energy level first.
b. Hund's rule
Unpaired electrons are not allowed prior to each occupied by one electron orbits.
c. prohibition Pauli
The electrons of an atom may not have the same four quantum numbers.
d. Orbital full and half full.
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