Chapter 9 Quiz

38 Questions  I  By Jlsanko

  
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1.  The classical model of the hydrogen atom falls because
A.
B.
C.
D.
2.  The speed of the wave packet that corresponds to a moving particle is 
A.
B.
C.
D.
3.  The electrons in an atom all have the same 
A.
B.
C.
D.
4.  The rate at which an object emits electromagnetic energy does not depend on its
A.
B.
C.
D.
5.  Which of teh following types of radiation is not emitted by the electronic structures of atoms? 
A.
B.
C.
D.
6.  According to the theories of modern physics, 
A.
B.
C.
D.
7.  A hydrogen atom is said to be in its ground state when its electron 
A.
B.
C.
D.
8.  If Planck's constant were larger than it is, 
A.
B.
C.
D.
9.  In a vaccum, all photons have the same
A.
B.
C.
D.
10.  According to the uncertainity principle, it is impossible to precisely determine at the same time a particle's 
A.
B.
C.
D.
11.  The energy difference between adjacent energy levels in the hydrogen atom
A.
B.
C.
D.
12.  An atom emits a phtoon when one of its orbital electrons
A.
B.
C.
D.
13.  The operation of the laser is based upon 
A.
B.
C.
D.
14.  Which of the following properties is not characteristic of the light waves from a laser? 
A.
B.
C.
D.
15.  When an atom absorbs a photon of light, which one or more of the following can happen? 
A.
B.
C.
D.
E.
16.  How many quantum numbers are needed to determine the size and shape of an atomic orbital?
A.
B.
C.
D.
17.  According to the exclusion principle, no two electrons in an atom can have the same
A.
B.
C.
D.
18.  The orbital of an atomic electron is 
A.
B.
C.
D.
19.  Most stars are hot objects surrounded by cooler atmosphere. The spectrum of such a star is a
A.
B.
C.
D.
20.  A quantum number is not associated with an atomic electron's 
A.
B.
C.
D.
21.  An s orbital
A.
B.
C.
D.
22.  An electron can revolve in an orbit around an atomic nucleus without radiating energy provided that the orbit
A.
B.
C.
D.
23.  When the speed of the electrons that strike a metal surface is increased, the result is an increase in
A.
B.
C.
D.
24.  The photoelectric effect can be understood on the basis of 
A.
B.
C.
D.
25.  A phenomenon that cannot be understood with the help of the quantum theory of light is 
A.
B.
C.
D.
26.  WHen light is directed at a metal surface, the energies of the emitted electrons
A.
B.
C.
D.
27.  The narrower the wave packet of a particle is
A.
B.
C.
D.
28.  An electron in a p state of an atom has an angular momentum quantum number l of 
A.
B.
C.
D.
29.  In the Bohr model of the atom, the electrons revolve around the nucleus of an atom so as to 
A.
B.
C.
D.
30.  De Broglie waves can be regarded as waves of 
A.
B.
C.
D.
31.  A neon sign does not produce
A.
B.
C.
D.
32.  The description of a moving body in terms of matter waves is legitimate because
A.
B.
C.
D.
33.  THe emission spectrum produced by the excited atoms of an element contains frequencies that are 
A.
B.
C.
D.
34.  According to the theories of modern physics, light
A.
B.
C.
D.
35.  According to the Bohr model of the atom, an electron in the ground state
A.
B.
C.
D.
36.  The quantum-mechanical theory of the atom is 
A.
B.
C.
D.
37.  Electrons behave like
A.
B.
C.
D.
38.  The mass of a photon
A.
B.
C.
D.
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