FIn fission fusion

fission and fusion both

binding e increase, mass is lost, and e is released

nuclei < iron

nuclear fusin

nuclei > iron

nuclear fission

fission two types

spontaneous or induced

fission def

splitting large unstable nuclei to form smaller ones

fusion def

combining 2 smaller nuclei to create a bigger one,

fusion only happen when

there is enough energy to overcome the electrostatic repulsion between protons and close enough to be attracted by SNF

energy released in a nuclear reaction when

the binding e per nucleon of products is greater than the binding energy per nucleon of reactants

binding energy

how much energy is required to separate nucleus into constituent nucleons, energy given to nucleons to add extra mass so that they are able to exist on their own

stability based on

binding energy per nucleon

binding energy how calculate

1. find mass defect

2. x931

3. divide by mass number