Page 17 - eBook T2 eISBN2
P. 17
MANUAL TITLE GOES HERE
Figure 2.5: Arrow shows the path to follow to calculate how many
electrons can be filled in each orbit.
The graphic shows arrow of the path to follow. Now that we know the order of orbitals to fill,
you need only memorize the size of each orbital.
S orbitals have one possible value of m to hold 2 electrons.
P orbitals have three possible value of m to hold 6 electrons.
D orbitals have five possible value of m to hold 10 electrons.
F orbitals have seven possible value of m to hold 14 electrons.
This is all you need to determine the electron configuration of a stable atom of an element.
Configuration using the Aufbau Principle
The notation seen on period tables for electron configurations uses the form:
nOe
n is the energy level
O is the orbital type (s, p, d, or f)
e is the number of electrons in that orbital shell.
Electron Configuration of Sulphur
The atomic number of Sulphur is 16, implying that it holds a total of 16 electrons. As per the
Aufbau principle, two of these electrons are present in the 1s subshell, eight of them are
PAGE 16 OF 42
Copyright © 2022 – Politeknik Kota Bharu
