WARM UP Name 3 scientists who worked on quantum theory or quantum mechanics. Describe their contribution in 3 words or less.

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Presentation transcript:

WARM UP Name 3 scientists who worked on quantum theory or quantum mechanics. Describe their contribution in 3 words or less.

Quantum Numbers

Principal (n) Shell / Energy Level 1, 2, 3, etc

Momentum / Shape (ℓ) Subshells (in a shell) s p d f Shell # = # of different subshells 1: s 2: s, p 3: s,p,d 4: s,p,d,f

Magnetic (mℓ) Orbitals (in subshell) s: 1 orbital p: 3 orbitals d: 5 orbitals f: 7 orbitals

Electron Spin (ms) Up or down (+ ½ or – ½) 2 e- per orbital

Electron Counts Subshells hold e- based on their orbitals Ex: s = ___ orbitals = ___ e-

Electron Counts Ex: n=2 = ____ subshells = ___ orbitals = ___ = electrons

WRAP UP For shells 1 – 5, list: a) how many subshells are possible in each, and b) how many orbitals are possible in each subshell.

WARM UP List the 4 types of quantum numbers, the name we call them, and the symbol that represents them.

WRAP UP Explain why each of the following descriptions of electron locations is not possible. The 4th electron in shell 2, s subshell The 3rd electron in an orbital in a d subshell The 2nd electron in the 8th orbital of an f subshell in the 8th shell

Do you like the Bohr model or the electron cloud model better? Why? WARM UP Do you like the Bohr model or the electron cloud model better? Why?

WRAP UP Do you like quantum theory or wave mechanics better? Why?