Quantam (Small Pieces) Mechanics :)

Bohr Theory
- the electron is a particle that must be in orbital in the atom
- Quantam Theory
- The electron is like a cloud of negative energy or a wave
- Orbitals are areas in 3D space where the electrons most probably are.
- The energy of the electron is in its vibrational modes - like notes on a guitar string.
- Photons are produced when high energy modes change to lower energy modes

S - ORBITALS - Sphere
each orbital holds 2 electrons

P - ORBITALS -
there are 3 suborbitals
each contain 2 electrons
total electrons = 6

D - ORBITALS -
there are 5 suborbitals
each contain 2 electrons
total electrons = 10

F - ORBITALS -
there are 7 suborbitals
each contain 2 electrons
total electrons = 14

EXAMPLE :
How many and what type of electrons are there in Magnesium?
1s x 2
2s x 2
2p x 6
3s x 1