Half life of `Bi^(210)` is 5 days. If we start with 50,000 atoms of this isotope, the number of atoms left over after 10 days is

The half-life of Bi^210 is 5 days. What time is taken by (7//8)^th part of the sample of decay ?

Radon (Ra) decays into Polonium (P_0) by emitting an alpha- particle with half-life of 4 days. A sample contains 6.4 xx 10^10 atoms of R_n . After 12 days, the number of atoms of R_n left in the sample will be

Radon (Ra) decays into Polonium (P_0) by emitting an alpha- particle with half-life of 4 days. A sample contains 6.4 xx 10^10 atoms of R_a . After 12 days, the number of atoms of R_a left in the sample will be

Half-life of an element A is 25 days. After 25 days , three atoms of A become

The life-life of Bi^210 is 5 days. What time is taken by (7//8)^th part of the sample of decay ?

The life-life of Bi^210 is 5 days. What time is taken by (7//8)^th part of the sample of decay ?

The half -life period of ._(84)Po^(210) is 140 days. In how many days 1 g of this isotope is reduced to 0.25 g ?

The half -life period of ._(84)Po^(210) is 140 days. In how many days 1 g of this isotope is reduced to 0.25 g ?

The half life of radon is 3.8 days. After how long there will be only one twentieth of radon sample left over?