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CHEM 1101 Assignment 2

CHEM 1101 Assignment 2 - CHEM 1101 — Assignment Atom Name...

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Unformatted text preview: CHEM 1101 — Assignment - Atom Name: Student #: CHEM 1101 Assignment: EMRI the Atoml and Atomic Orbitals Submit hand-written solutions on this sheet. Show your work. Show the units and which ones cancel 1. Calculate the energy of the photon emitted when an electron in an H atom falls from the third level to the ground state. Ewe 2 RH 61/61 A) = (2.19— 10‘“) C- ’A) =— 2. 3) Phosphorus has an ionization energy of 1012 kJ/mol. What wavelength of EMR is just sufficient to ionize it? 63- 1 l 43 W14 1.01210 . —————~—-"" - , . J /mol 6,-022133 05‘ fl ‘ 691 la 4}“ b) You shine EMR with a wavelength of 189 nm onto the surface of tin (Sn) metal. The emitted electrons have 3.43 x 10491 of kinetic energy. Determine the work function of tin. w: E’KE :L” —-KE 7\ : 6 $7,645”— s.oo.io' 4" v..— — 3.43M -1 113“- to . _, 4 = mos-lo", 3.43m1 w = 1019“} ...
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