Show that the nuclide `.^8Be` has a positive binding energy but is unstable with respect to decay into two alpa particles, where masses of neutron, `.^1H`, and `.^8 Be` are `1.008665` u, `1.007825 u`, and `8.005305 u`, respectively.

The electrotatic energy of Z protons uniformly distributed throughout a spherical nucleus of ratio R is given by E = (3 Z(Z- 1)e^(2))/(5 4 pi e _(0)R) The measured masses of the neutron _(1)^(1) H, _(7)^(15) N and , _(8)^(15)O are 1.008665 u, 1.007825 u , 15.000109 u and 15.003065 u, repectively Given that the ratio of both the _(7)^(12) N and _(8)^(15) O nu8cles are same , 1 u = = 931.5 Me Vc^(2) (c is the speed of light ) and e^(2)//(4 p-i e^_(0)) = 1.44 MeV fm Assuming that the difference between the binding e4nergies of _(7_^(15) N and _(8)^(15) O is puraly due to the electric energy , The radius of the nucleas of the nuclei is

Find the Q value of the reaction P + .^(7) Li rarr .^(4) He +.^(4) He . Determine whether the reaction is exothermic or endothermic. The atomic masses of .^(1) H,.^(4) He and .^(7)Li are 1.007825 u,4.002603 u , and 7.016004 u , respectively.

What is the Q-value of the reaction? ""^(1)H+""^(7)Lito ""^(4)He+""^(4)He The atomic masses of ""^(1)H,""^(4)Heand ""^(7)Li 1.007825u, 4.0026034u and 7.01600u, respectively.

Calculate the binding energy per nucleion of Li isotiope, which has the isotopic mass of 7.016 am u . The indivisulal masses of netutron and proton are 1.008665 am u and 1.007277 am u , respectively and the mass of electron = 0.000548 am u .

Calculate the binding energy of an alpha -particles. Given that mass of proton =1.0073u , mass of neutron =1.0087 u . And mass of alpha -particle =4.0015 u .

(a)Calculate the energy relaeased if ^238U emits an alpha -partical .(b)calculate the energy to be supplied to ^238U if two protons and two neutrons areto be emitted one by one .The alomic massed of ^238U, ^234Th and ^4He are 238.0508U,234.04363 u and 4.00260 u respectively.

The binding energy of ._(10)Ne^(20) is 160.6 MeV. Find its atomic mass. Take mass of proton =1.007825 u and mass of neutron =1.008665 u.