Multiple Choice
The electron in a hydrogen atom falls from an excited energy level to the ground state in two steps, causing the emission of photons with wavelengths of 2624 nm and 97.2 nm, respectively. What is the principal quantum number or shell of the initial excited energy level from which the electron falls
A) 2
B) 3
C) 4
D) 6
E) 8
Correct Answer:

Verified
Correct Answer:
Verified
Q27: What is the energy in joules of
Q28: According to de Broglie's equation, the wavelength
Q29: The following set of quantum numbers is
Q30: A ground-state atom of vanadium has _
Q31: A possible set of quantum numbers to
Q33: Of the following which, if any, provides
Q34: A proton is roughly 1800 times
Q35: Calculate the energy of a photon of
Q36: The scattering of helium atoms by a
Q37: Which one of the following sets of