Show that `(._(26)^(55)Fe)` may electron capture, but not `beta^(+)` decay.
Masses given are `M(._(26)^(55)Fe)=54.938298 am u`,
`M(._(25)^(55)Mn)=54.938050 am u, m(e )=0.000549 am u`.

Show that ._(92)^(230)U does not decay by emitting a neutron or proton. Given: M(._(92)^(230)U)=230.033927 am u, M(._(92)^(230)U)=229.033496 am u , M(._(92)^(229)Pa)=229.032089 am u, M(n)=1.008665 am u m(p)=1.007825 am u .

A fusion reaction of the type given below ._(1)^(2)D+._(1)^(2)D rarr ._(1)^(3)T+._(1)^(1)p+DeltaE is most promissing for the production of power. Here D and T stand for deuterium and tritium, respectively. Calculate the mass of deuterium required per day for a power output of 10^(9) W . Assume the efficiency of the process to be 50% . Given : " "m(._(1)^(2)D)=2.01458 am u," "m(._(1)^(3)T)=3.01605 am u m(._(1)^(1) p)=1.00728 am u and 1 am u=930 MeV .

An isotopic species of lithium hydride LiH is a potential fuel in a reactor on the basis of reaction ._(3)^(6)Li+._(1)^(2)H rarr 2._(2)^(4)He . Find the possible power production in kW assciated with the consumption of 1g of .^(6)Li^(2)H per day, if the efficiency of the process is 100 % . [M(._(3)^(6)Li) = 6.01702 am u, M(._(1)^(2)H) = 2.01474 am u, M(._(2)^(4)He) = 4.00388 am u]

Consider one of the fission reactions of U^(235) by thernmal neutrons : ._(92)U^(235) + n rarr ._(38)Sr^(94) + ._(54)Ce^(140) + 2n The fission fragments are, however, not stable. They unaergo successive beta- decays unit ._(38)Sr^(94) becomes ._(40)Zr^(94) and ._(54)Xe^(140) becomes ._(58)Ce^(140) . Estimate the total energy released in the process. Is all that energy available as kinetic energy of the fission products (Zr and Ce)? You are given that m (U^(235)) = 255.0439 am u," " m_(n) = 1.00866 am u " " m(Zr^(94)) = 93.9065 am u, " " m(Ce^(140)) = 139.9055 am u

In a star, three alpha particle join in a single reaction to form ._(6)C^(12) nucleus. Calcuate the energy released in the reaction Given : m(._(2)He^(4)) = 4.002604 am u, " " m(._(6)C^(12)) = 12.000000 am u

Consider the fission ._(92)U^(238) by fast neutrons. In one fission event, no neutrons are emitted and the final stable and products, after the beta decay of the primary fragments are ._(58)Ce^(140) and ._(44)Ru^(99) . Calculate Q for this fission process, The relevant atomic and particle masses are: m(._(92)U^(238))=238.05079u, m(._(58)Ce^(140))=139.90543 u, m(._(34)Ru^(99))=98.90594 u

Calculate the energy released during the combination of four hydrogen atoms and forming a helium atom along with two positrons. Use the atomic masses given as follows: m(""_(1)H^(1)) = 1.007824 u, m(""_(2)He^(4)) = 4.002604 u and mass of each positrons = 0.000548 u.

The binding energies of deutron (._1H^2) and alpha -particle (._2He^4) are 1.25 and 7.2 MeV/nucleon respectively. Which nucleus is more stable? Calculate binding energy per nucleon of ._(26)Fe^(56). M(._(26)Fe^(56)) =55.934939 a.m.u, m(proton)=1.007825 a.m.u., m(neutron) =1.008665 a.m.u.

Calculate binding energy per nucleon of ._83Bi^(209) . Given that m (._83Bi^(209))=208.980388am u m("neutron") = 1.008665 am u m ("proton") = 1.007825 am u

Calculate the binding energy per nucleon (B.E./nucleon) in the nuclei of ._(26)Fe^(56) . Given : mp[._(26)Fe^(56)]=55.934939 " amu",m[._(0)n^(1)]=1.00865 " amu" , m[._(1)"II"^(1)]=1.00782 " amu"