irection: Write the nuclear reactions involved in the synthesis of each of the following new elements. a) Curium (Z 96) was formed by reacting Pu- 239 with alpha particles 42He. It has a half-life of 162 days. b) Mendelevium (Z 101) was formed by reacting En - 253 with alpha particles. c) Meitnerium (Z 109) was formed by cold fusion which involves the combination of Bi and Fe nuclides at ordinary temperature. %3D

irection: Write the nuclear reactions involved in the synthesis of each of the following new elements. a) Curium (Z 96) was formed by reacting Pu- 239 with alpha particles 42He. It has a half-life of 162 days. b) Mendelevium (Z 101) was formed by reacting En - 253 with alpha particles. c) Meitnerium (Z 109) was formed by cold fusion which involves the combination of Bi and Fe nuclides at ordinary temperature. %3D

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

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
When 239 Pu is used in a nuclear reactor, one of the fission events that occurs is gy 239 in + 39 94 1.008665u 239.052u Pu + Cs + 140 55 95.916u 139.917u 1.008665u The atomic mass of each atom is given below its symbol in the equation. Find the energy released (in kJ) when 7.50 g of plutonium undergoes this particular fission. Hint given in feedback.
Consider the fission reaction n + 235U ---> 140Xe + ? + 2n After having found the missing nuclide, calculate the Q-value of the reaction. Enter your result in MeV to 1 decimal place
Calculate the energy released (per mole of deuterium consumed) for the following fusion reaction, + given the following molar masses of nucleons and nuclei. (c = 2.998 x 108 m/s) particle mass (g/mol) proton 1.007825 neutron 1.008665 deuterium 2.0140 tritium 3.01605 helium-4 4.00260 5.63 x 103 kJ/mol O 1.69 x 1012 kJ/mol O 4.62 x 1010 kļ/mol 8.44 x 108 kl/mol 1.69 x 109 kJ/mol
Phosphorus-30, which has a half-life of 150 seconds, decays by positron emission. How long will it take for 2.6% of this nuclide to decay? (Express your answer in seconds.) How long will it take for 99.5% of this nuclide to decay? (Express your answer in seconds.)
On absorption of a single neutron, plutonium Pu-239 can undergo fission into xenon Xe-134 plus zirconium Zr-103 plus three neutrons. The masses of these nuclei are, mPu-239 = 239.052 amu, mXe-134 = 133.905 amu, and mZr-103 = 102.927 amu. Calculate the energy given off in this nuclear reaction.
Determine the change in energy (in kJ/mol) of the given nuclear fission reaction. 239 Pu + 6" 94 134 Xe 54 103 + 40 Zr + 3n Mass of Pu-239 = 239.052 g/mol; Mass of Xe-134 = 133.905 g/mol; Mass of Zr-103 = 102.926 g/mol Mass of proton = 1.0078 amu; Mass of neutron = 1.0087 amu Speed of light = 3.00 x 10° m/s 1 amu = 1 g/mol = 1.66 x 1027 kg 1 MeV = 1.60 x 10-13 Note: mass defect = total mass of products - total mass of reactants Express your answer in scientific notation with 2 decimal places (e.g. 1.23E4, 1.23E-4, -1.23E4, etc.). Do not write the units.
21. As stated in the previous problem, Cesium-137 is a radioactive product of nuclear power plants. Cs-137 and beta minus decays into barium, Ba-137. a) Write out the radioactive decay formula correctly listing the atomic numbers and mass numbers of the parent and daughter isotope as well as the two ejected particles. b) Specify if one of the ejected particles is an electron or positron?
On absorption of a single neutron, an isotope of uranium U-235 can undergo fission into barium Ba-141 and krypton Kr-92, some neutrons, and 173 MeV of energy. The masses of these nucleiare, mU-235 = 235.044 amu, mBa-141 = 140.914 amu, and mKr-92 = 91.926 amu. Find the number of neutrons given off in this nuclear reaction.
Calculate the energy ( in joules ) released when 1.0 g of U- 235 undergoes fission reaction into Ba - 142 and Kr -92 and neutron/s. The masses are: Ba-142 = 141.92 u %3D Kr - 92 = 91.92 u Table 20.3 Masses of Some Nuclei and Other Atomic Particies Symbol Mass (amu) Symbol Mass (amu 0. 0.000549 27 59 58.9184 1,00867 Ni 28 58 57.9199 Hor P 1.00728 2,01345 Ph 82 82 82 206 207 205.9295 206.9309 207,9316 3.01550 208 He 3.01493 4.001S0 Po 84 210 218 209.9368 217.9628 84 Li 6.01347 7.01435 Ri Ra 86 222 226 221.9703 225.9771 88 Be 6. 9.00999 Th 230 229.9837 B. 10 10.0102 I1.0066 90 91 214 234 233.9942 233.9931 11 Pa 12 13 11.9967 13.0001 92 211 232.9890 92 234 233.9904 8. 16 15.990S 92 235 234.9934 24 52 51.9273 Fe 92 238 238.0003 26 S6 55.9206 Pu 94 239 239.0006 828
One way to convert lead into gold is to irradiate 206Pb with neutrons. There are several steps in the process, and neutrons are required for each Pb atom. In addition to gold, beta and alpha particles are produced. This process requires a particle accelerator, and he cost is much higher than the value of any gold that could be produced. Write the overall nuclear reaction for the process. What isotope of gold will this process produce?
A decay series starts with the synthetic isotope 23992U. Thefirst four steps are emissions of a β- particle, another β- , an α particle, and another α . Write a balanced nuclear equation foreach step. Which natural series could start by this sequence?