1. A proton is captured by an oxygen-16 atom which in turn emits a deuteron. Wha

Question

1. A proton is captured by an oxygen-16 atom which in turn emits a deuteron. What is the element and mass number of the product isotope?

a. fluorine-15 b. oxygen-15 c. oxygen-17 d. nitrogen-15

2. The ionization energy of the hydrogen atom is 13.6 eV. What is the wavelength of a photon having this much energy? (h = 6.63 ´ 10-34 J×s, c = 3.00 ´ 108 m/s, 1 eV = 1.6 ´ 10-19 J, and 1 nm = 10-9 m)Answer a. 136 nm b. 91.4 nm c. 273 nm d. 360 nm
3. In a plot of probability of finding the electron in the hydrogen ground state versus the distance from the nucleus, the maximum occurs:Answer a. at a0, the first Bohr radius. b. at slightly less than a0. c. at slightly more than a0. d. at 2 a0.

4. Which of the following will not influence the rate at which nuclear reactions will occur in a nuclear power plant where the fuel elements are a mixture of 235U and 238U?Answer a. the percentage of the energy that is used to produce electricity b. the presence of moderating material c. the presence of control rods d. the percentage of 235U relative to 238U

Explanation / Answer

1)

b) oxygen-15

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3)

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4)

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