Question

5. (8pts) Using the table below answer the following questions (be sure you show all your work!)Hint: mass-mass conversion 1 g6.02x10- amu, mass-energy conversion lg. -9.00x1013), and energy-energy conversion 1 J=6.24x102MeV. Using the given information calculate the mass decrement and binding energy of each of the following nuclei. a 126C (AE in MeV) b. 23892U (AE in kJ) 6. (12pts) Calculate AE, in joules, for the reaction of one nucleus of polonium-210: 2104Po + 2 ton → 208Pb + He How many me will remain after 30 days? 7. (12pts) A sample contains 4.6 mg of The half-life of 131331 is 8.0 days.

Answer 1

Actual moss - 11.99671 amu sinu Carbon has 6 proton + 6 neutrons. Calculated Mass = = = - 68 mp + 6x mm 6 x 1.00728 ♡ + 6x1.00867 6.04368 + 6.05202 12.09570 amu. mass decrcament - Calculated - Actual - $ 12.09570 - 11.99671 0.09899 amu- B.E. = 0.098.99 x 932.9 MeV. os 1 amo a 932.9 Meu = 92: 348 More - ® ® 2380 Actual mass a 238.000 3 ano. Calculated mass = 92 x mp + 1468 m. = 92 X 1.00728 + 146 X 1.00867 - 92.66976 + 147.26582 239.9356 amu BE

Moss Decreament = 239.9356-238.0003 - 1.9353 amu 1-9353 m = 0.3215 X 16 gr. 6.02 X 10 23 B.E: = 0.3215 X16:23 X 9.00-X lodds 2.89 X 10-10 I = 3 2.89 x 10-13 kJ.