`""_(84)Po""^(210)` decays with a particle to `""_(82)Pb""^(206)` with a half life of 138.4 days. If 1.0 g of `""_(84)Po""^(210)` is placed in a sealed tube, how much helium will accumulate in 69.2 days. Express the answer in `cm""^(3)` at STP

._(84)Po^(210) decays with alpha- particle to ._(82)Pb^(206) with a half-line of 138.4 day. If 1.0g of ._(84)Po^(210) is placed in a sealed tube, how much helium will accumulate in 69.2 day? Express the answer in cm^(3) at STP . Also report the volume of He formed if 1g of Po^(210) O_(2) is used.

A certain radioactive isotope ._(Z)^(A)X(t_(1//2)=100 days decays to ._(Z-2)^(A-8)Y . If 1 mole of ._(Z)^(A)X is kept in sealed container , how much He gas will accumulate at STP in 200 days?

A certain radioactive isotope ._(Z)^(A)X(t_(1//2)=100 days) decays to ._(Z-2)^(A-8)Y . If 1 mole of ._(Z)^(A)X is kept in sealed container , how much He gas will accumulate at STP in 200 days?

Find the activity of 1 g sample of ""_(84)Po^(210) . The half-life of ""_(84)Po^(210) is 138 days.

A certain radio isotope ._(Z)X^(A) (half life = 10 days) decays to give ._(Z-2)Y^(A-4) . If 1.0 g atom of X is kept in a sealed vessel, find the volume of helium accumulated at STP in 20 days ?

A certain radio isotope ._(Z)X^(A) (half life = 10 days) decays to give ._(Z-2)Y^(A-4) . If 1.0 g atom of X is kept in a sealed vessel, find the volume of helium accumulated at STP in 20 days ?

A radioisotope ._(Z)A^(m) (t_(1//2) = 10 days) decays to give ._(z - 6)B^(m - 12) stable atom along with alpha -particles. If m g of A are taken and kept in a sealed tube, how much He will accumulate in 20 days at STP .