Use following information:
Tellurium-128 is a Beta Emitter, with the longest half life known, measured at 2.2x10^24 years.
5) The Number of atoms of tellurium-128 in a 1g sample is:
6) The Activity of a 1g sample of tellurium-128 is
I have converted the half life to seconds and worked out the decay constant but after that I don't know what I'm doing, I've looked at my textbook and it doesn't help. I really don't know what to do
I think I know how to work out 6 but I need the answer for 5.
Please help I'm stuck, Thanks for your time