`""_(88)""^(224)Ra` decays by a series emmision of three `beta-` particles and two `alpha-`particles. The end product of X is

alpha -particles and beta -particles

When a radio active isotopes "_88Ra^228 decays in series by the emission of three alpha -particles and a beta -particle, the isotopes finally formed is ...

When the radioactive isotope _(88)Ra^(226) decays in a series by emission of three aplha (alpha) and a beta (beta) particle, the isotope X which remains undecay is

When the radioactive isotope _(88)Ra^(226) decays in a series by emission of three aplha (alpha) and a beta (beta) particle, the isotope X which remains undecay is

When a radioactive isotope _88Ra^228 decays in series by the emission of 3 alpha particles and a beta particle, the isotope finally formed is

._90^232 Th an isotope of thorium decays in ten stages emitting six alpha- particle and four beta- particle in all. The end product of the decay is.

When the radioactive isotope ._(88)Ra^(228) decays in series by the emission of 3 alpha and 1 beta particle, the isotope finally formed is

When the radioactive isotope ._(88)Ra^(228) decays in series by the emission of 3 alpha and 1 beta particle, the isotope finally formed is

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