Question

Why is electron capture accompanied by the emission of an X-ray?

a) Conservation of energy
b) Release of excess protons
c) Transition of electrons
d) Excitation of nucleus

Answer 1

Electron capture is accompanied by the emission of an X-ray due to the transition of electrons in the atom.

Step-by-step explanation:

Electron capture occurs when an inner shell electron combines with a proton and is converted into a neutron. As the outer electron drops into the vacancy left by the captured electron, it emits energy in the form of an X-ray. This emission is due to the transition of electrons in the atom.