`._(92)U^(235)` is `alpha` (alpha) active. Then in a large quantity of the element:

The half life of ._92U^(238) against alpha decay is 1.5xx10^(17)s . What is the activity of the sample of ._92U^(238) having 2.5xx10^(21) atom?

The half life of ._92U^(238) against alpha -decay is 4.5xx10^9 years. What is the activity of 1g sample of ._92U^(238) ?

Stationary nucleus ._(92)^(238)U decays by a emission generating a total kinetic energy T: ._(92)^(238)U rarr ._(90)^(234)Th +._2^4 alpha What is the kinetic energy of the alpha -particle?

The ""_(92)^(235) U disintegrates to give 4 alpha and 6 alpha particles . The atomic number of the end product is

In the transformation of ""_(92)""^(238)U to ""_(92)""^(234)U , if one emission is an alpha particle, what should be the other emission(s)?

In the transformation of ""_(92)^(238)U to ""_(92)^(234)U , if one emission is an alpha -particle, what should be the other emission ?

A ._(92)^(238)U undergoes alpha decay. What is the resulting daughter nucleus?

Decay of ""_(92)U^(235) is ……order reaction.