- Calculate the angle between the direction of the z-component and that of the orbital angular momentum vector for an electron in an f orbital when mt=3 ? - 35.345.254.730.0 None of the answers. - In pure rotational spectra, what is the energy difference between the fifth and the sixth energy levels? (Note: M=h2/2I ) * 16h2/9mL2 * 5h2/8mL2nx=ny=2andnz=3 is given by: h2/8mL217h2/8mL2 - The possible j values for an f-electron according to Russell-Saunder's coupling are: 7/2 and 5/2 only 3/2,5/2 and 7/2 only 1/2,3/2 and 5/2 only * 1/2 and 3/2 only * None of the above - The wavelength of the light that is required to excite rotation in molecules is in which range of the electromagnetic radiation? * Microwave range * VIS range * Between IR and VIS * UV range Which one of the following pairs of molecules is vibrationally IR active/rotationally Raman inactive? N2/SF6 SF6/H2 CO2/CH4 N2/NH3 CCl4/H2