The energy of an electron on an atom that is not in a magnetic field is not dependent upon which of the following?
(a) Charge on the nucleus
(b) Spin quantum number
(c) Angular momentum quantum number
(d) Principle quantum number
(b) Spin quantum number
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The difference between the "ground state" and an "excited state" for a hydrogen atom is
A) the atom can radiate when it is in an excited state, but not when it is in a ground state. B) the excited state has more energy. C) Both of the above. D) a ground state's matter field is a standing wave but an excited state's matter field is not a standing wave. E) All of the above.
Which of the following is suggested as the best explanation of the missing solar neutrinos?
a. The Sun is fusing helium but not hydrogen. b. Nuclear reactions do not produce neutrinos as fast as theory predicts. c. The Sun may contain matter we haven't yet identified. d. Neutrinos may oscillate between three different flavors. e. None of the others.
The molecules in a room-temperature glass of water jostle around at
A) various speeds. B) much the same speed. C) constant speeds.
A hydrogen atom makes a transition from the n = 8 to the n = 3 state. The wavelength of the emitted photon is closest to which one of the following values? (c = 3.00 × 108 m/s, 1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ? s)
A) 9.57 × 10-7 m B) 1.13 × 10-6 m C) 3.12 × 10-7 m D) 4.52 × 10-6 m E) 6.34 × 10-7 m