Half life of a radioactive element is 10 days. What percentage of the element will remain undecayed after 100 days?

Half life of a radioactive sample is 10days. What fraction of this sample will remain undecayed after 100days?

The half-life of a radioactive element is 1600 y. What part of the element will remain after 6400 y ?

The half life period of a radioactive element is 90 minutes. What percentage of radioactive element will be present after 6 hours of decomposition ?

The half-life period of a radioactive element is 140 day. After 560 days, 1 g of the element will reduce to

The half life period of a radioactive element is 140 days . After 560 days , 1 g of the element will reduce to

The half-life period of a radioactive element is 140 days. After 560 days, 1 g of the element will reduce to

Initial amount of the radioactive element with half life 10 days is 16 g. What amount in gm of this element will remain after 40 days?

The half life period of a radioactive element is 140 days. After 560 days, one gram of the element will reduced to :

The half life period of radio active element is 140 days. After 560 days 1gm of element will reduce to