2 - Particles and Radiation

Question 1

Which fundamental interaction is responsible for electron capture?

Answer 1

Weak interaction/weak nuclear force
As it involves leptons and hadrons/because quark flavour changes

Question 2

What is the equation linking energy and frequency for particles?

Answer 2

E = hf
E is energy, h is Planck’s constant, f is frequency

Question 3

A particle decays by electron capture. What happens to its atomic number and what else is produced?

Answer 3

Atomic number decreases by 1
Electron neutrino produced

Question 4

A particle decays, gaining a proton in the process. What would be expected to be emitted?

Answer 4

This is beta emission
Would expect to see an electron released from the nucleus, and an antineutrino released