What is the wavelength of the line in the Paschen series of hydrogen that is comprised of transitions from the n = 5 to the n = 3 levels? (R = 1.097 107 m1 and 1 nm = 109 m)
a. 1406 nm
b. 1282 nm
c. 684 nm
d. 750 nm
e. 365 nm
[Ques. 2] Of the various wavelengths emitted from a hydrogen gas discharge tube, those associated with transitions from higher levels down to the n = 2 level produce which of the following?
a. infrared
b. visible
c. mixture of visible and ultraviolet
d. ultraviolet
[Ques. 3] Of the various wavelengths emitted from a hydrogen gas discharge tube, those that are associated with transitions from higher levels down to the n = 1 level produce which of the following?
a. infrared
b. visible
c. mixture of infrared and visible
d. ultraviolet
[Ques. 4] The ionization energy for the hydrogen atom is 13.6 eV. What is the energy of a photon that is emitted as a hydrogen atom makes a transition between the n = 6 and n = 4 states?
a. 1.13 eV
b. 0.47 eV
c. 0.09 eV
d. 3.40 eV
e. 6.80 eV
[Ques. 5] The Lyman series of hydrogen is made up of those transitions made from higher levels to n = 1 . If the fifth line in this series has a wavelength of 94 nm, what is the wavelength of the sixth line?
a. 106 nm
b. 93 nm
c. 117 nm
d. 102 nm
e. 124 nm
[Ques. 6] What is the wavelength of the line in the Balmer series of hydrogen that is comprised of transitions from the n = 5 to the n = 2 level? (R = 1.097 107 m1 and 1 nm = 109 m)
a. 304 nm
b. 434 nm
c. 476 nm
d. 95 nm
e. 333 nm
[Ques. 7] When a cool gas is placed between a glowing wire filament source and a diffraction grating, the resultant spectrum from the grating is which one of the following?
a. line emission
b. line absorption
c. continuous
d. monochromatic
[Ques. 8] When a high voltage is applied to a low-pressure gas causing it to glow, it will emit which type of spectrum?
a. line emission
b. line absorption
c. continuous
d. monochromatic
[Ques. 9] When a wire carries high current causing it to glow, it will emit which type of spectrum?
a. line emission
b. line absorption
c. continuous
d. monochromatic
[Ques. 10] In contrast to Thomson's model of the atom, Rutherford's model
a. had the positive charge spread uniformly through the atom.
b. had the positive charge concentrated in a small region.
c. was first to explain atoms emitting discrete frequencies.
d. eliminated radiation from accelerating charges.
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