Radioactive Beta Emission?

Question

How much energy is released when 14C, decays by β- emission?

I tried E=mc^2 of the mass of an electron to get the energy, but that didn't work. I'm really confused as to what to do, Thanks!

Answer 1

Beta particles are merely electrons, they can be easily removed from a nucleus. Radioactivity is the result of fission, neutrons are released, if a chain reaction of emission is taking place you have a fission bomb. E=MC2 relates to nuclear fusion, there is no alpha particle radiation involved here.

Answer 2

A beta particle is an electron. You can find the kinetic energy of the electron, 0.5mv squared, for the solution. Rest mass of an electron is 0.0005486 kg