1. Calculate the number of atoms per cubic centimeter of lead given that the density of...

1. Calculate the number of atoms per cubic centimeter of lead given that the density of lead is 11.3 ?/??3 and its atomic weight is 207.21.
2. Calculate the ionization potential of a singly ionized ?? 4 atom.
3. (a) How much energy would be released if 1 g of deuterium were fused to form helium according to the equation 2? + 2? → ?? 4 + ?? (b) How much energy is necessary to drive the two deuterium nuclei together?
4. In a certain 25-W mercury-vapor ultraviolet lamp, 0.1% of the electric energy input appears as UV radiation of wavelength 2537 Å. What is the UV photon emission rate per second from this lamp?
5. Compute the frequency, wavelength, and energy (in electron volts) for the second and third lines in the Lyman series

Expert Solution

genius_generous answered 2 years ago

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