A neutron hits U 235 which then splits into a Cs 140 atom
(139.91728u), a Rb...
A neutron hits U 235 which then splits into a Cs 140 atom
(139.91728u), a Rb 93 atom (92.92204u), and several neutrons. How
many grams of U 235 do we need to start with to produce 1.3 x 10^9
J?
U-236 is an important neutron poison in reactors that is created
in uraniumbased fuels from U-235 capturing a neutron. Derive an
expression for the time at which the peak U-236 concentration
occurs. Note that not all neutron absorption by U-235 becomes
U-236; some U-235 atoms fission.
On neutron-capture induced fission, 235 92U typically splits
into two new “fission product” 92 nuclei with masses in the ratio
1:1.4. These are born with the same proton to neutron ratio as the
original uranium, so they have too many neutrons to be stable at
their mass number and are highly radioactive. Energy is released in
two stages: first an intermediate or prompt release leading to
radioactive fission products in their ground state; and then a much
slower release via...
An atom of beryllium (m = 8.00 u) splits into two atoms
of helium (m = 4.00 u) with the release of 92.2 keV of
energy. Suppose the beryllium atom moved in the positive x
direction and had a kinetic energy of 44.0 keV. One of the helium
atoms is found to be moving in the positive x direction.
Find the direction of motion of the second helium, and find the
velocity of each of the two helium atoms. Solve...
1a Describe how thermal energy is obtained by
fission, specifically when a U=235 atom is hit by a slow-motion
neutron (less than 0.9 MeV). When one states that 200 MeV of energy
are released by a fission event, what is the form of this
energy?
1b. The energy released by fission is by the
change in mass and Einstein’s equation (E=Δmc2). If the
mass of one uranium 235 atom is 235.042924 amu and the mass of
fission products is 234.92754...
which atom is likely to have highest first ionization energy. a.
Ar b. Ca c. Cs d.i
2. Two elements reactants to form an ionic solid. If the
electron configuration of element A is (N.G.)ns1 and the electron
confirguration of B is (N.G.)ns^2np^3 what is the most likely ionic
formula for the product? A. A^2B B. A^3B C. AB^2 D. AB^3