Calculate the wavelength of the lowest energy transition in the Brackett series of the electronic spectrum of the Li⁺ ion.  The Rydberg constant for He is R_Li = 109729 cm^–1.

A line in the Paschen series of the emission spectrum of atomic hydrogen is observed at a wavenumber of 7800 cm^–1.  Deduce the upper state principal quantum number for this transition.

Calculate, from the fundamental constants, the value of the Rydberg constant for a deuterium atom.

What is the degeneracy of the energy level with n = 6 in a hydrogenic atom or ion?

How many nodes does a 4d orbital possess?

The change in energy when an electron is transferred between a neutral potassium and a neutral bromine atom to produce a positively charged potassium cation and negatively charged bromine anion

K(g) + Br(g) ® K⁺(g) + Br^–(g) is 93.6 kJ mol^–1.  The ionization energy of a potassium atom is 4.34 eV.  Calculate the electron affinity of a neutral bromine atom.

To which orbitals may an electron in a 2p orbital in a hydrogenic atom make allowed spectroscopic transitions?

What terms can arise from the configuration 2p¹3p¹?

Predict the levels that may arise from a ²P term of an excited potassium atom.

Atomic carbon, C, has a ground electronic configuration that gives rise to the levels ³P_2,1,0, ¹D₂ and ¹S₀.  Use Hund's rule to predict which of these levels is lowest in energy.