A radioactive element X emits `3alpha` , one beta and one gamma-particles and forms `""_(76)Y^(225)` Element X is

A radioactive element X emits six alpha -particles and four beta -particles leading to end product ""_(82)^(208)Pb . X is

A radioactive element X emits six alpha -particles and four beta -particles leading to end product ""_(82)^(208)Pb . X is

A redioactive element ._(Z)X^(A) emits an alpha particle and changes into

A radio-active elements emits one alpha and beta particles then mass no. of daughter element is :

A radio-active elements emits one alpha and beta particles then mass no. of daughter element is :

A radioactive element ""_(92) X^(238) emits one alpha - particle and one beta ' particle in succession. What is the mass number of new element formed?

Radioactive pollution is caused by alpha, beta, gamma particles.