a guest Oct 23rd, 2019 123 Never
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- beta radiation is divided into: Beta- and Beta+ radiations
- Beta- radiation causes an atom to lose one neutron and gain one proton.
- Hence, the atomic number is increased by 1 and (liczba masowa) is not changed.
- Beta+ radiation causes an atom to lose one proton and gain one neutron.
- Hence, the atomic number is decreased by 1 and (liczba masowa) is unchanged.
- But, we can also take at a scope only single neutron or proton; not necessarily the whole atom. So:
- Beta- radiation when in contact with isolated neutron causes it to transform into proton.
- Beta+ radiation when in contact with isolated proton causes it to (surprise surprise) take no effect. Why?
- Because mass of neutron is slightly higher (slightly w chuj, praktycznie identyczne).
- So transition proton --> neutron is not possible, because mass cannot be increased without additional energy.
- In an atom-scope proton --> neutron is possible, because the energy is taken from <jakieś tam atom binding idk>
- Energy released/absorbed by beta radiation is:
- E = [delta masses] * c^2, where:
- delta masses = Initial Atom mass - Final Atom mass - electron mass - neutrino(antineutrino) mass
- c = speed of light
- Beta radiation is directly related to half-life of an atom. (? chyba)
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