Why can heavy nuclei with odd numbers of neutrons be induced to fission with thermal neutrons, whereas those with even numbers of neutrons require more energy input to induce fission?

University Physics 1 Lecture week #1 Textbook- can be any calculus based university physics textbook, concepts do not change Physical theory o A pattern that relates the phenomena of nature o A very well establish or widely used theory is called a Law or Principle Fundamental quantities o Length: Meter, m o Time: Second, s o Mass: kilogram, kg o Charge: coulomb, C No sig fig penalties, but mastering physics might be rude about it Don’t put in the entire ridiculous number from the calculator like 2.473827483284937237492m o Three sig figs unless otherwise stated to be 4 Ax=Acos(theta) A YAsin(theta)A=(A 2+Ax^)^1/2, (Theta)=tan^-1(A /A ) Y x Unit vectors o Ĵ is used for the unit vector in the +Y direction o Î is used for the unit vector in the +X direction o K is used for the unit vector in the +Z direction Label vectors as o B y Ex: sin(65)x2=B y o -Cos(65)x2=Bx Displacement: A vector quantity given by the change in the particles position: Delta X=X 2X 1 Average velocity: o ΔX/ΔT Instantaneous Velocity: o dX/dT=lim t->0x/Δt Vector: o V Speed: o V o Average speed= Distance covered/Δt 774-815