Author Question: Characteristic x-rays can be produced by bombarding targets with electrons. These x-rays occur when ... (Read 92 times)

Pineappleeh · **on:** Jul 28, 2018

Characteristic x-rays can be produced by bombarding targets with electrons. These x-rays occur when
a. electrons from higher shells fill the vacant lower shell
b. electrons fill the vacant valence shell
c. photons are emitted with energies on the order of 103 eV
d. photons are emitted with wavelengths on the order of 103 nm

Question 2

Forbidden transitions and selection rules suggest that
a. a photon has linear momentum.
b. a photon has energy.
c. a photon has angular momentum.
d. a photon has parity.
e. a photon has mass.