9) Calculate the kinetic energy (in eV) of a nonrelativistic neutron that has a de Broglie wavelength of 9.9 x 10-12 m. (h = 6.626 x 10-34 J . s, or h = 4.136 x 10-15 ev - 5, Mneutron = 1.675 x 10-27 kg, 1 eV = 1.60 x 10-19 J) 10) Photon energy: Gamma rays are photons with very high energy. How many visible-light photons with a wavelength of 500 nm would you need to match the energy of a gamma-ray photon with energy 4.1 x 10-13 J? (h = 6.626 x 10-34 J . s, c= 3.00 x 108 m/s) 11) Uncertainty principle using ApAx 2 4/2: An electron inside a hydrogen atom is confined to within a space of 0.110 nm. What is the minimum uncertainty in the electron's velocity? (# = 1.055 x 10-34 J . S, mel = 9.11 x 10-31 kg)1) In the ground state, the quantum numbers (n, 1, me, my) for hydrogen are, respectively, A) 1, 0, 0, 0. B) 1, 1, 0, +1/2. C) 1, 1, 1, 1. D) 1, 0, 0, +1/2. E) 1, 1, 1, +1/2. 2) In a hydrogen atom, a given electron has ! = 7. How many values can mp have? A) 6 B) 7 C) 15 D) 98 E) 33 3) Which of the following statements about /+ decay are correct? (There may be more than one correct choice.) During #+ decay A) the atomic number Z of the isotope increases by one unit but the atomic weight A remains unchanged. B) a proton is emitted from the nucleus. C) a proton in the nucleus decays to a positron and a neutron. D) a neutron in the nucleus decays to a proton and an electron. E) an orbital electron is captured by the nucleus. 4) Scandium, "So, decays by emitting a positron. What is the nuclide that is the product of the decay? 44 44 B) * Ca 43 45 A) C) 21 D) 21 Sc 43 Ca 20 20 E) 21 5) If a nucleus decays by gamma decay to a daughter nucleus, which of the following statements about this decay are correct? A) The daughter nucleus has fewer protons than the original nucleus. B) The daughter nucleus has more neutrons than the original nucleus. C) The daughter nucleus has the same number of nucleons as the original nucleus. D) The daughter nucleus has more protons than the original nucleus. E) The daughter nucleus has fewer neutrons than the original nucleus.6) For a 93 41 No atom, the number of protons, neutrons, and electrons in the atom is A) 41, 52, 52. B) 41, 52, 41. C) 52, 41, 0. D) 41, 52, 0. E) 41, 52, 93. QUANTITATIVE: Show ALL of your work for full credit. (70 points total) 7) A metal surface has a work function of 1.50 ev. Calculate the maximum kinetic energy, in e V, of electrons ejected from this surface by electromagnetic radiation of wavelength 311 nm. (c=3.00 x 108 m/s, 4 = 6.626 x 10-34 J . s, or h =4.136 x 10-15 eV . s, e=-1.60 x 10-19 C, 1 ev = 1.60 x 10-19 J) 8) Light excites atomic hydrogen from its lowest level to the m = 4 level. What is the energy of the light