A sample of radium Ra (atomic mass=224.020 186 u, T12-3.66 days) contains No-3.68 x 1021 nuclei and undergoes a decay to produce radon Rn (atomic mass=220.011 368 u). The atomic mass of an a particle is 4.002 603 u. The latent heat of fusion for water is 33.5 x 10* J/kg. With the energy released in 3.66 days, how many kilograms of ice could be melted at 0°C m-Number i Units

A sample of radium Ra (atomic mass=224.020 186 u, T12-3.66 days) contains No-3.68 x 1021 nuclei and undergoes a decay to produce radon Rn (atomic mass=220.011 368 u). The atomic mass of an a particle is 4.002 603 u. The latent heat of fusion for water is 33.5 x 10* J/kg. With the energy released in 3.66 days, how many kilograms of ice could be melted at 0°C m-Number i Units