Chapter 9 Quiz

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