Answer:
1 Ci = 3-7 x 1010 disintegrations
per second.
= 2.96 x 108
disintegrations/s.
Also, T = 5.3 years = 5.3 x 365 x
24 x 60 x 60s = 1.67 x 108s Now usingor
Now 6.023 x 1023
atoms of cobalt have
mass = 60 g
7.13 x
1016 atoms of cobalt have mass
You need to login to perform this action.
You will be redirected in
3 sec