In the electron-wave model of the atom, the orbit of an electron in the ground state contains
A) a single wavelength.
B) multiple wavelengths.
C) even number quanta.
Answer: A
Physics & Space Science
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CCD stands for a
a. photometer. b. charge-coupled device. c. spectrograph. d. core collapse device. e. grating.
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On a Hertzsprung-Russell diagram, where would we find stars that are cool and dim?
A) upper right B) lower right C) upper left D) lower left
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When two pieces of fissionable material are assembled, the average distance that a neutron travels before escaping will
A) decrease. B) increase. C) be the same.
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