The __________ states that a particle cannot be precisely localized.
Fill in the blank(s) with correct word
[Ques. 2] Two things that are quantized in the Bohr model of the hydrogen atom are __________ and __________.
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[Ques. 3] An atom can be excited into a higher energy state by absorbing a __________.
Fill in the blank(s) with correct word
[Ques. 4] An excited atom can lose energy by emitting a __________.
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[Ques. 5] A quantum of electromagnetic radiation is a __________.
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[Ques. 6] The __________ occurs when electrons are emitted when light strikes the surface of a metal.
Fill in the blank(s) with correct word
[Ques. 7] Laser light is ________ and monochromatic, and usually of much ________ intensity than the light from the light bulb.
a. coherent b. incoherent
c. lower d. higher
[Ques. 8] Electrons in atoms
a. orbit the nucleus in well-defined circular orbits.
b. radiate electromagnetic energy continuously.
c. act as if spread out in a cloud around the nucleus.
d. behave as predicted by quantum mechanics.
[Ques. 9] The mathematical model of quantum mechanics was principally founded by
a. Max Planck.
b. Albert Einstein.
c. Neils Bohr.
d. Erwin Schrdinger.
e. Werner Heisenberg.
[Ques. 10] As the temperature of a blackbody increases, the peak of its radiation curve moves
a. upward toward higher intensity.
b. downward toward lower intensity.
c. toward larger wavelength.
d. toward smaller wavelength.
e. none of the above.
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