How many `alpha`- and `beta`- particles are emitted, when `_(90)Th^(232)` decays to `_(82)Pb^(208)`?

How many alpha - and beta - particles are emitted, when _(90)Th^(232) decays to _(89)Ac^(228) ?

How many alpha - and beta - particles are emitted, when _(92)U^(238) decays to _(90) Th^(230) ?

How many alpha and eta - particles are emitted ,when uranium nucleus (_(92)U^(238)) decays to lead (_(82)Pb^(206)) ?

After a series of alpha and beta decays,plutonium (_(94)Pu^(239)) becomes lead - (_(82)Pb^(207)) . How many alpha and beta particles are emitted in the complete decay scheme?

._(90)Th^(234) disintegrates to give ._(82)Pb^(206)Pb as the final product. How many alpha and beta particles are emitted during this process ?

A nucleus X_n^m emits one alpha -particle and one beta -particle. What are the mass number and atomic number of the product nucleus?

A nucleus "_nX^m emit one alpha-particl e and two beta-particl e the resulting nucleus is

Strontium-90 decays with the emission of a beta- particle to form Ytrium-90 .The reaction is represented by the equation _(38)Sr^(90) rarr _(39)Y^(90) + _(-1)e^0 + 0.55 MeV the decay constant is 0.025 year ^(-1) . Suggest,with a reason,which nucleus _(38)Sr^(90) or _(39)Y^(90) ,has the greater binding energy.

Strontium-90 decays with the emission of a beta- particle to form Ytrium-90 .The reaction is represented by the equation _(38)Sr^(90) rarr _(39)Y^(90) + _(-1)e^0 + 0.55 MeV the decay constant is 0.025 year ^(-1) . At the time of purchase of a Stronituim-90 source the activity is 3.7 xx 10^6 Bq . Calculate ,for this sample of strontium,the initial number of atoms.

In the given radioactive disintegration series ._(92)^(235)U rarr_(82)^(207)Pb Calculate difference between number of alpha and number of beta particles emitted in this series.