Calculate the number of `beta`particles , If a radioactive element `_(90)X^(238)` dacays into `_(83)gamma^(222)`.

beta- particle in radioactivity is emitted by:

A radio active element "_90X^238 decays into "_83X^222 . The no. of B particles emitted are—

Calculate the number of alpha - and beta -particles emitted when ._(92)U^(238) into radioactive ._(82)Pb^(206) .

beta -particle is emitted in radioactivity by

Calculate number of alpha-and beta - particles emitted when ""_(92)^(238)U changes into radioactive ""_(82)^(206)Pb

The number of alpha and beta particles, respectiyely, emitted in the radioactive decay ""_(90)X^(200) to _(80)Y^(168) are,