Posted by Evelyn on .
The half life of gold197 is 10.6. What fraction of a sample remains after 21.2 years?

chemistry 
bobpursley,
amount remaining=Original e^(ln2*21.1/10.6)
amount remaining/original=.252 check that
Posted by Evelyn on .
The half life of gold197 is 10.6. What fraction of a sample remains after 21.2 years?
amount remaining=Original e^(ln2*21.1/10.6)
amount remaining/original=.252 check that