Varied Knowledge Flashcards
What do quantum numbers do?
They identify the energy and location of an electron in an atom with respect to other electrons
How is each electron defined/identified?
Each electron, in every atom is identified by its own unique set of 4 quantum numbers
Principal quantum number: n
The first quantum number.
It represents the energy level in atomic model
Possible quantities are 1,2,3…
Secondary quantum number: ł
Second quantum number
Represents the type of orbital (s,p,d,f)
Possible quantities are 0,1,2,3…
Magnetic quantum number: mł
Third quantum number
Since orbitals can exist at different angles, this number represents the orbital orientation on atomic model (platforms on energy level diagrams)
Possible values are -ł to +ł and these go twice.
Spin quantum number: ms
Fourth quantum number
Since electrons can spin both ways, this number represents the up and down arrows on energy level diagrams.
Possible values are positive and negative one half (positive first)
What is VSEPR Theory short for?
Valence Shell Electron Pair Repulsion Theory.