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CH1012
QUANTUM MECHANICS I
Quantum Mechanical Model of the Atom
Bohr’s model fails for multi-electron atoms.
Quantum Mechanics governs electron motion and allows the energies of the  atom to have only discrete values.
The energy is said to be quantised.
(quanta = packet)
Schrödinger Equation
H Y = E Y                [Y - Greek psi]
Y = atomic wavefunction  E = atomic energy
H = Hamiltonian operator ( incl. e-/ e- effects)