1. The 1s--> 2p transition in a hydrogen-like atom occurs at 1.00x106 cm-1.
a. What is the ionization energy of this atom in Joules?
b. If this atom is ionized with light with a wavelength 4.00 nm, what is the de Broglie wavelength of the ejected electrons?
2. The 2p-->1s transition in 4He+ is at 329,211 cm-1. Predict the position in cm-1 of the same transition for 3He+. (4He=2 protons+2 neutrons. 3He = 2 protons + 1 neutron)