half life Flashcards
1
Q
what is half life?
A
the time it takes for the radioactive atoms to decay
2
Q
how to work out alpha decay
A
4
alpha
2
so the element minus these values then find the new name.
3
Q
how to work out beta decay
A
0
beta
-1
so the element minus these values then find the new name.
4
Q
in decay calculations, is the mass number or the atomic number the most important thing?
A
the atomic number
5
Q
different isotopes will have?
A
Different half lives
