Question

Determine from the given data, whether the following reaction is exothermic or endothermic : ²²⁶₈₈Ra → ²²²₈₆Rn + ⁴₂He Atomic masses : m(²²⁶₈₈Ra) = 226·02540 u m(²²²₈₆Rn) = 222·01750 u m(⁴₂He) = 4·002603 u

What is the ratio of the nuclear density of ⁴₂He and ¹⁴₇N ?

Calculate the binding energy of an alpha particle in MeV. Given : mass of a proton = 1.007825 u mass of a neutron = 1.008665 u mass of He nucleus = 4.002800 u 1u = 931 MeV/c²

A heavy nucleus P of mass number 240 and binding energy 7.6 MeV per nucleon splits into two nuclei Q and R of mass number 110 and 130 and binding energy per nucleon 8.5 MeV and 8.4 MeV respectively. Calculate the energy released in the fission.