Which of these electron transitions correspond to absorption of energy and which to emission?
a) n = 2 to n = 4,
b) n = 3 to n = 1,
c) n = 5 to n = 2,
d) n = 3 to n = 4.
Which of these electron transitions correspond to absorption of energy and which to emission?
a) n = 2 to n = 4,
b) n = 3 to n = 1,
c) n = 5 to n = 2,
d) n = 3 to n = 4.