Quantum Numbers

Quantum Numbers

In quantum numbers always use the last electron
configuration in knowing the element`s “n, l, mL, mS”
♥ n- principal quantum
♥ l- azimuthal quantum
♥ mL- magnetic quantum
♥ms- magnetic spin quantum
For example:
6C : 1s2 2s2 2p6
12

Note: We'll be using Carbon as our example

♥ n- describes the energy level, an electron is located in.

Example: 2p6
               n= 2

♥ l- Sublevels in the atoms of the knownelements are s- p- d - f .
♥ describes the shape of the orbital.

Example: 2p6
               l= 1

Why 1?, because in the chart it shows that if the sublevel is p its 1.
















♥ mL-describes the orientation in space for the orbital.

Example: 2p6
               mL- 0

Take Note!!

♥ mS- Describes the spin of an electron.

Example: 2p6
               l= +1/2

Why +1/2?, because if the last arrow Is arrow down its –1/2 because it is
spinning counterclockwise, if its arrow up its +1/2 because it spins clockwise.