7. Californium-251 was synthesized at the University of California in 1950. At the time of sampling, a 0.632 g of Californium-251 had an activity of 3.72 Ci. a) Write the nuclear equation for the decay of Californium-251 and determine which particle is emitted when Californium-251 decays to Curium-227 b) What is the decay rate of Californium-251? c) What is the decay constant of Californium-251?

9) Determine the binding energy of an Al-28 nucleus. The Al-28 nucleus has a mass of 27.9819101 amu. A proton has a mass of 1.00728 amu, a neutron has a mass of 1.008665 amu, and 1 amu is equivalent to 931 MeV of energy.

Why are so many health hazards associated with fission fragments that are produced during the fission of heavy nuclei?

Predict the decay pathway for each unstable nuclide and write the nuclear equation a.) Mo-113 b.) Rn-196 c.) Y-84

1.Please tell me what element 238U becomes when it undergoes alpha decay 2. Please tell me what element 32P becomes when it undergoes beta decay 3. What type of radiation is the most damaging to living creatures? Why?

Write nuclear equations for the following bombardment reactions. a. Platinum-196 is bombarded by a deuteron (H-2), producing platinum-197 and a proton. b. Nitrogen-14 is bombarded by a neutron, producing carbon-14 and a proton. c. Plutonium-239 plus an alpha yields three neutrons and a transuranium element. d. Uranium-238 plus a neutron yields a beta and another product.

. You have 44.3 mg of the radioactive isotope 1311. How long will it take for the amount of 1311 to drop to 15.3 mg? 131 has a half-life of 8.02 days. A) 8.02 days B) 12.3 days C) 23.5 days D) 10.8 days E) 19.8 days Write a nuclear equation for the alpha decay of Am-241. A) 24 Am → He + ½/He + 233Np B) 24 Am → He + 245Bk 97 -je + 241 Cm C) 245Am → →e+ D) 241-3 Am → ₁e + 241 Pu → 94 241 95 E) 29-Am Am → → 1/1/n + În + 240 Am

The isotope C-13 has an atomic mass of 13.007491 amu. What is the mass defect for the formation of C-13 from it's constituent particles? (known masses are: electron = 0.00054858 amu, proton = 1.00727647 amu, neutron mass = 1.008665) A) .1001143 B) 0.968228 amu C) 0.10286147 amu D) 0.1015028 amu

A.) write a balanced nuclear equation for alpha decay of bromine-84. B.) write a balanced nuclear equation for the beta decay of selenium-75. C.) write a balanced nuclear equation for the Alpha decay of americium-241.

All food consumed by humans contains a trace amount of naturally occurring, radioactive 14C.    If this isotope decays by beta emission what new element is formed?   a) 168O b) 147N c) 126C d) 115B