N = 1 is the lowest electronic energy state for a hydrogen atom. (a) If a hydrogen atom is in state N = 4, what is K + U for this atom (in eV)? (b) The hydrogen atom makes a transition to state N = 2....

N = 1 is the lowest electronic energy state for a hydrogen atom.

(a) If a hydrogen atom is in state N = 4, what is K + U for this atom (in eV)?

(b) The hydrogen atom makes a transition to state N = 2. Now what is K + U in electron volts for this atom?

(c) What is the energy (in eV) of the photon emitted in the transition from level N = 4 to N = 2?

(d) Which of the arrows in Figure 8.29 represents this transition?