When thermal neutrons (negligible kinetic energy) are used to induce the reaction ,
`._(5)^(10)B to ._(0)^(1)H to ._(3)^(7)Li + ._(2)^(4)He alpha` - particle emmited with an energy of 1.83 MeV. Given the masses of boron neutron & `He^4` as 10.01167, 1.00894 & 4.00386 u respectively. What is the mass of `._(3)^(7)Li`? Assume that particles are free to move after the collision.

Answer

7.01366 amu