Download Chapter 6 Quantum Mechanics

Chapter 6 Quantum
Mechanics
Supplemental Instruction
Iowa State University
Leader:
Course:
Instructor:
Date:
Ryan Gale
Chem 177
Miller/Bonaccorsi
10/10/12
1.) Calculate the energy of a photon when an electron moves from energy level n = 3 to
energy level n = 1. Use E = -2.18 x 10-18 (1/n2f – 1/n2i). Was energy emitted or
absorbed?
a.) Now calculate the wavelength of this photon. Is this photon in the visible
spectrum? If so, what color is it, if not what type of radiation is it?
2.) Calculate and compare the wavelength of an 85-kg person skiing at 50km/hr, a 10.0 gram
bullet fired at 250 m/s, and an ozone molecule (O3) in the upper atmosphere moving at
550 m/s. (Problem 6.43 in book) Use the De Broglie wavelength λ=h/(mv), where m is
the mass (kg), v is the velocity (m/s), and h is Planck’s constant, 6.626 x 10-34Js.
3.) What are the three main limitations to Bohr’s Model of the atom?
a.)
b.)
c.)
Supplemental Instruction
1060 Hixson-Lied Student Success Center  294-6624  www.si.iastate.edu
4.) The Heisenberg Uncertainty Principal states that if we know the momentum of an atomic
particle, like an electron, then we can’t know the particle’s___________ exactly, only generally.
5.) (Problem 6.52) How many possible values for l and ml are there when:
a.) n = 3
b.) n = 5
6.) (Problem 6.54) Give the values for n, l, and ml for
a.) Each orbital in the 2p subshell
b.) Each orbital in the 5d subshell