Question

Consider an atom of singly- ionized helium (Z=2)

a. calculate its ground-state energy in eV

b. work out an expression for the wavelengths of photons needed to raise the ion from its ground state to the state n. compute values (in nm) of the largest and samllest such wavelengths

c. compute the circumference (in nm) of the orbit for the particular value of n in part b that gives the largest wavelength and its orbital speed as a fraction of c

Answer 1