Quantum Number & Electron Configuration Workshop

Question 1

What are the four quantum numbers?

Answer 1

Principal quantum number (n)
azimuthal quantum number (l)
magnetic quantum number (ml)
Spin quantum number (ms)

Question 2

Principal quantum number (n)

Answer 2

gives the overall energy level and size of the electron’s path.
-allowed values of n are positive integers.
As the electrons energy increases the value of n increases and the radius of the shell increases.
-the max number of electrons per shell is 2n^2

Question 3

Azimuthal quantum number (l)

Answer 3

refers to subshells and describes the shape of the electrons orbital.
-integers from 0 to (n-1)

Question 4

magnetic quantum number (ml)

Answer 4

for any given subshell ml can have integer values ranging from -l to +l.
-divides the subshells into individual orbitals and defines the orientation of the orbitals.

Question 5

spin quantum numbers (ms)

Answer 5

• values can be +1/2 or -1/2
• responsible for the magnetic properties of an atom.
• ms has no effecrt on the energy of the orbital

Question 6

What does the Pauli Exclusion Principle states?

Answer 6

no two electrons in an atom can have the same four quantum numbers.