The isotopes Radium-`224(_(88)Ra^(224))` and Radium-`226(_(88)Ra^(226))` both undergo spontaneous `alpha`-particle decay.The enrgy of the `alpha`-particles emitted froim radium -224 is 5.68 MeV and from Radium-226,4.78 MeV
Suggest with a reason ,which of the two isotopes has the larger decay constant.

The isotopes Radium- 224(_(88)Ra^(224)) and Radium- 226(_(88)Ra^(226)) both undergo spontaneous alpha -particle decay. Radium-224 has a half - life of 3.6 days. Calculate the decay constant of Radium-224.

The atomic weiht of radium is 226 .It is observed that 3.67 xx 10^(10) alpha - particles are emitted per second from one gramp of radium.Calculate in years the half-life period of radium.

Find the Q-value and the kinetic energy of the emitted a-particle in the alpha -decay of - "_88^226Ra .Given m ( "_88^226Ra ) = 226.02540 u and m ( "_86^222Rn ) = 222.01750 u.

An isotope _(92)U^(238) decays successively to form _(90)Th^(234),_(91)Pa^(234),_(92)U^(234),_(90)Th^(230) and _(88)Ra^(226) .What are the radiation emitted in these five steps?

Under certain circumstances, a nucleus can decay by emitting a particle more massive than an alpha -particle. Consider the following decay processes: "_88^223Ra rarr "_82^209Pb + "_6^14C , "_88^223Ra rarr "_86^219Rn + "_2^4He .Calculate the Q-values for these decays and determine that both are energetically allowed.