How many distinct sets of all 4 quantum numbers are there with n = 4 and ml = -2?

What are quantum numbers? What information do we get from the quantum numbers n, l, and ml? We define a spin quantum number (ms), but do we know that an electron literally spins?

What is the maximum number of electrons that can occupy a f subshell (l = 3)?

Consider the colors of the visible spectrum. (a) Which colors of light involve less energy than green light? (b) Which color of light has photons of greater energy, yellow or blue? (c) Which color of light has the higher frequency, blue or green?

Which of the following is a valid set of quantum numbers for an electron in a hydrogen atom? (a) n = 1, = 0, m = 0, ms = 1 (b) n = 1, = 1, m = 0, ms = 1/2 (c) n = 1, = 0, m = 1, ms = + 1/2 (d) n = 1, = 0, m = 0, ms = 1/2

6.96 When a helium atom absorbs light at 58.44 nm, an electron is promoted from the 1s orbital to a 2p orbital. Given that the ionization energy of (ground state) helium is 2372 kJ/ mol, find the longest wavelength of light that could eject an electron from the excited state helium atom.

Which of the following equations describe particle-like behavior? Which describe wavelike behavior? Do any involve both types of behavior? Describe the reasons for your choices. (a) c=v (b) E=mv22 (c) r=n2a0Z (d) E=hv (e) =hmv

Give the maximum number of electrons in an atom that can have these quantum numbers: a. n = 4 b. n = 5, ml = + l c. n = 5,ms = +12 d. n = 3, l = 2 e. n = 2, l = 1

What are the allowed values for each of the four quantum numbers: n, l, ml, and ms?

Sketch a picture of the 90% boundary surface of an s orbital and the px orbital. Be sure the latter drawing shows why the p orbital is labeled px and not py, for example.