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CHM 113 (21)
Final

Bohr Model, Electron Config. & Exam questions

2 Pages
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Department
Chemistry
Course Code
CHM 113
Professor
Ron Briggs

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Description
Rydberg Equation: 1/λ = (R H Z (1/n lower – 1/n upper) - R = Rydberg’s Constant (1.096776 x 10 m ) 7 -1 - Z 2 atomic number - N lower/upper = lower & upper energy levels Example: n = 4 → n = 2 - 1/λ = (1.096776 x 10 m ) 1 (1/2 – 1/4 ) 2 - 1/λ = 2056455 -9 - λ = 486.1 x 10 m - λ = 486.1 m (blue/green) Example: n = 5 → n = 2 7 -1 2 2 2 - 1/λ = (1.096776 x 10 m ) 1 (1/2 – 1/5 ) - 434.0 nm (indigo/violet) Example: n = 6 → n = 2 7 -1 2 2 2 - 1/λ = (1.096776 x 10 m ) 1 (1/2 – 1/6 ) - 410.1 nm (violet) Quantum Theory: - ΔX * Δ(MV) > h/4 - What we know from quantum mechanics: - o For atoms of more than one e , energy levels of n =2 and above are composed of smaller subshells o N = 1 shell has 1s subshell  N = 1____ _ _ _ ____ 1s o N = 2 shell has 2s and 2p subshells  ____2p  N=2___ /  \ ____2s o N = 3 shell has 3s, 3p and 3d  ____3d  N=3___ / ____3p  \ ____3s o N = 4 shell has 4s, 4p, 4d and 4f  SEE PACKET (Sammi said so) - - Each subshell san hold a diff-rent maximum amount of e o S subshells → 2 e o P subshells → 6 e - - o D subshells → 1
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