Answered: 11. 252Cf decays by spontaneous fission… | bartleby

Related questions

Question

11.252Cf decays by spontaneous fission 3.09% of the time and by alpha particle emission 96.91%
of the time. Calculate the total and fission activity of a 1 ug sample of 252Cf (T/2 2.645
years; mass = 252.081626 amu; density = 15.1 g/em'). Further, what is the partial decay
%3D
constant for fission?

Expert Solution

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

In the figure below, note that for low Z, all the nucleii with the most highest binding energy per nucleon have both an even number of protons and an even number of neutrons. Explain why this is. 9 soFe 9%Mo 160 8. 144N. 183W He 20sPb "Be 235U 6. Fusion reactions release energy Fission reactions release energy 1 40 80 120 160 200 240 Atomic Mass Number (A) Use the editor to format your answer E (MeV)
1) If the activity of a purely radioactive sample of 55Fe is measured to be 0.5 mCi. What is the number of nuclei of this isotope present after 5.4 years. 2) 226Ra (t₁/2 = 1600 y) alpha decays to the 1st excited state of nucleus X with branching ratio 6% and alpha decays to the ground state of X with branching ratio 94%. Calculate the partial half-life for the first mode transition (the one to the first excited state of X). 3) Fill the missing and decide the type of decay in the following decays: a) Co* → [ ] + Co b) ¹50 [ ] + [ ] + ¹5N 40 c) 10K + [ ] 18Ar d) 21 Po 84 e) ¹3 Be →>> 2a + [ ] ¹2Be + [ ]
Find the mass energy released in the alpha decay of Ac-220. atomic mass of 220 Ac = 220.014763 u; 89 atomic mass of 20Fr = 216.003198 u; 87 atomic mass of He = 4.002603 u; u = 931.5 MeV/c^2. (in MeV) OA: 1.888 OB: 2.738 OC: 3.971 OD: 5.757 OE: 8.348 OF: 12.105 OG: 17.552 OH: 25.450
Question 4. A syuthetic radioisotope is freshly prepared in a lab that has an ac- tivity of 10.0 mCi. If the activity of the radioisotope changes to 8.00 mCi, in 5.00 h, (a) What is the decay constant and half-life of the radioisotope in seconds? (b) How many atoms of the radioisotope were contained in the freshly prepared sam- ple? (e) What is the sample's activity in mCi 40.0 h after it is prepared?
Find the mass energy released in the alpha decay of Ac-220. atomic mass of 220 Ac = 220.014763 u; 89 atomic mass of 216 Fr = 216.003198 u; 87 atomic mass of He = 4.002603 u; u = 931.5 MeV/c^2. (in MeV) OA: 0.898 OB: 1.302 OC: 1.888 OD: 2.738 OE: 3.971 OF: 5.757 OG: 8.348 OH: 12.105
2. Compare the excitation and activation energies for thermal neutron-induced fission of 237 (Eactivation= 6.2 MeV) b) 95AM242 (Eactivation = 5.9 MeV) m(Np²37)=237.048168u, m(Np238)=238.050941u, m(Am242)=242.059542u, m(Am243)=243.061375u, mn=1.008665u, uc²=931.502 MeV 242
A large power reactor that has been in operation for some months is turned off, but residual activity in the core still produces 150 MW of power. If the average energy per decay of the fission products is 0.96 MeV, what is the core activity in units of curies?
a radioactive material has a half-life of eigth days. how long will take for the material to be reduce on one-sixteeth (1/16) of its original mass? a radioactive sample has a decay constant of 0.219/minute. what is its half-liofe?, if at the start of an exeperiement, there are 3.2x10 nuclei, how much wilkl remain after 1 hour?
It is known that the mass of the alpha particle He is 4.002603u, Estimate the binding energy and binding energy per nucleon obtained directly from the reaction channel: I. 2р + 2n He II. Proton emission (Sp) Neutron emission (S,) 1.008665u dan m, I. = 1.007825u, 1u = 1.67 x 10-27kg.