A gaseous sample of this element is bombarded by photons of various energies (in these same units). Match each photon to the result of its absorption (or lack thereof) by an n=1 electron.
Photon Energy Result
A 96
B 75
C 69
D 51
Choose from:
n=1 to n=3
n=1 to n=2
n=1 to n=4
electron ejected
not absorbed