Q20 · 2023 · Paper 1Simple familiar1 mark
QUESTION 20
The energy level diagram for a simple atom is shown.
What transition is allowed for an electron that absorbs a photon with a frequency of ?
(A)
n = 1 to n = 3
(B)
n = 1 to n = 4
(C)
n = 2 to n = 3
(D)
n = 3 to n = 4
WORKED SOLUTION
1 markAnswer D
ANSWER
D
Worked solution
The photon energy is eV. The to energy gap is approximately eV, so that absorption transition is allowed. Option D.
Selects option D.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.