A closed vessel with rigid walls contains 1 mole of `._(92)^(238)U` and 1 mole of air at `298K`. Considering complete decay of `._(92)^(238)U` to `._(82)^(206)Pb`the ratio of the final pressure to the initial pressure of the system at `298K` is

How many moles of helium are produced when one mole of ._(92)^(238)U disintegrates into ._(82)^(206)Pb ?

How many moles of helium are produced when 1 mole of ._(92)U^(238) disintegrate into ._(82)Pb^(206) ?

In the decay series ._(92)U^(238) to ._(82)Pb^(206) , how many alpha -paritcles and how many beta^(ɵ) -particles are emitted?

On decay of ""_(92)U^(238) to a stable nucleus ""_(82)Pb^(206) , the number of alpha and beta particles emitted ar

""_(92)^(238)U is known to undergo radioactive decay to form ""_(82)^(206)Ph emitting alpha and beta particles. A rock initially contained 68xx10^(-6)g of ""_(92)^(238)U . If the number of alpha particles that it would emit during its radioactive decay of ""_(92)^(238)U to ""_(82)^(206)Pb in three half - lives is Zxx10^(18) , then what is value of Z?

In the nuclear reaction U_92^238 to Pb_82^206 , the number of alpha and beta particles decayed are:

How many alpha and beta particles are emitted when uranium ._(92)^(238)U decays to lead ._(82)^(206)Pb ?

In an ofd rock, the mass ratio of ._(92)^(238)U to ._(82)^(206)Pb is formed to be 595:103. The age of the rock is (Mean life of ._(92)^(238)U is T_(0) ) :