This energy diagram shows the allowed energy levels of an electron in a certain atom or molecule:
D
C
energy
B
A
Use this diagram to complete the table below.
Which is the ground state?
How many excited states are there?
How many lines are in the absorption line spectrum?
Which transition causes the emission line at the shortest wavelength?
Which transition causes the emission line at the longest wavelength?
(pick one)
0
☐
0 → 0
010