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WARM UP 1. Write your own 1 sentence definition of what quantum is. 2. List anything you remember about the 4 quantum numbers. Quantum Numbers Chemistry II Principal (n) • Energy level – 1, 2, 3, etc. Momentum / Shape (ℓ) • Orbitals making a subshell – All numbers between 0 and n-1 – 0=s 1=p 2=d 3=f Magnetic (mℓ) • Number of orbitals – mℓ = all numbers -ℓ through +ℓ Magnetic (mℓ) • Orbital shape – s: sphere – p: figure-8 – d: clover Electron Spin (ms) • Up or down (+ ½ or – ½) Orbitals and Electrons • Each orbital holds 2 e- – s subshell = ___ orbitals = ___ e– n=2 = ____ subshells = ___ orbitals = ___ = electrons ` WRAP UP 1.List all of the orbitals present in the 4th shell. WARM UP 1.List the 4 quantum numbers, using at least 2 terms or symbols for each. WRAP UP • Give the set of quantum numbers that would correspond to the following: – An up electron in the 3rd f orbital in the 5th shell – A down electron I the 1st p orbital of the 3rd shell