Energy of Light and Electrons (Converted) PDF

1. One type of sunburn occurs on exposure to UV light of wavelength equal to 325 nm. What is the frequency given in sec-1 for this wavelength? 2. An argon ion laser emits light at 489 nm. What is the frequency of this radiation? 3. What is the energy of a photon of electromagnetic radiation with a...

1. One type of sunburn occurs on exposure to UV light of wavelength equal to 325 nm. What is the frequency given in sec-1 for this wavelength? 2. An argon ion laser emits light at 489 nm. What is the frequency of this radiation? 3. What is the energy of a photon of electromagnetic radiation with a wavelength of 1.0 nm? 4. A certain blue light has a wavelength of 453 nm. What is the energy (in Joules) of one photon of this blue light with this wavelength? 5. The quantum number l for an electron in an atom is 2. Which subshell is this electron located in? 6. Only one set of quantum numbers listed below is a correct set (n, l, m l, ms). Which one? a. 3, 2, 0, 1/2 b. 3, 3, -3, 1/2 c. 2, 2, -2, 1/2 d. 4, 4, -3, 1/2 7. Based upon the electron affinity trend, which group of atoms is most likely to acquire an additional electron? a. Halogens b. Noble Gases c. Alkali Metals d. Alkaline Earth Metals 8. From the modern day Quantum theory of the atom, which theory postulates that the mass of the electron and its exact position cannot be deduced simultaneously and that we must be satisfied with the probability of finding the electron? 9. How many possible orientations (ml values) are allowed when l = 2? 10. How many electrons can be placed in the subshell described by the quantum numbers n = 2, l = 0?