Decay rules Flashcards
1
Q
beta negative decay
A
A(X)z –> A(Y)z+1 +e- +v(bar)
2
Q
example of beta negative decay
A
neutron –> proton + electron + anti electron neutrino
3
Q
Beta positive decay
A
A(X)z –> A(Y)z-1 + e+ + v
4
Q
Q value for beta decay’s to occur
A
Q>0
5
Q
electron decay (beta negative) mass proof
A
m atom (A,Z) > m atom (A,Z+1)
6
Q
positron decay (beta positive) mass proof
A
m atom (A,Z) - m atom (A,Z-1) > 2me
7
Q
electron capture
A
A(X)z + e- –> A(Y)z-1 + v
8
Q
example of electron capture
A
proton + positron –> neutron + electron neutrino
9
Q
electron capture mass proof
A
m atom (A,Z) - m atom (A,Z-1) > 0
10
Q
how does Q value and decay relate
A
usually the higher the Q value the faster the decay
