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Concept explainers
(a)
Interpretation: Complete the following
Concept Introduction:According to the law of conservation of mass the sum of the
(b)
Interpretation: Complete the following nuclear equations that are part of the uranmium-238 decay series.
Concept Introduction:According to the law of conservation of mass the sum of the atomic numbers and the sum of the atomic mases on the reactant sidemust be equal to the product side.
(c)
Interpretation: Complete the following nuclear equations that are part of the uranmium-238 decay series.
Concept Introduction:According to the law of conservation of mass the sum of the atomic numbers and the sum of the atomic mases on the reactant sidemust be equal to the product side.
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Chapter 16 Solutions
Pearson eText Basic Chemistry -- Instant Access (Pearson+)
- (Q114) A meteorite recovered from a meteor landing site in the Australian outback contains 0.438 g of lead-206 for every 1.000 g of uranium-238 that it contains. Assuming the rock did not originally contain any lead-206, how old is the meteorite? (The half-life for this decay process is 4.5 x 10⁹ years). 2.3 x 10⁹ years 2.7 x 10⁹ years 4.4 x 10⁹ years O 1.5 x 1010 years O 7.1 x 10⁹ yearsarrow_forward(38) The Cl isotope is a radioactive isotope that emits beta radiation and has a half-life of 40 minutes. A sample containing 0.40 moles of H38Cl is placed in a 6.24 L container. After 80 minutes, the pressure of this container becomes 1650 mmHg. What is the temperature of this bowl?arrow_forward3.3. Write the nuclear equation for the nuclear reaction in which a nuclei undergoes ß- decay and changes to cesium-133.3.5. Sodium-24 (t1/2= 15h) is used to study blood circulation. If a patient is injected with an aqueous solution of 24NaCl whose activity is 2.5x109d/s, how much of the activity is present in the patient’s body and excreted fluids after 4.0 days?arrow_forward
- 5.62 Write the balanced nuclear equation for each of the following: (5.1, 5.2) a. potassium-40 (6 decay b. sulfur-35 (8 decay) c. platinum-190 (a decay) d. Ra-210 (a decay) e. In-113m (y emission)arrow_forwardPart 1: Writing Radioactive Decay Reactions (5.2) lodine-131 (131I) isotope undergoes beta decay. 1. Write the symbol for the beta particle released by iodine-131 (show the respective superscript and subscript values). 2. In the nuclear equation for beta decay of iodine-131, does the beta particle appear on the reactant or product side of the arrow? Why?arrow_forward(7) Carbon-14 dating is used in archeology to determine the age of items that were alive or were made from living materials. This works because the proportion of radioactive Carbon-14 to the other isotopes of Carbon is relatively constant in the atmo- sphere. (Volcanos constantly refresh the C-14 content.) A wooden tool from an archeological site is found to contain 22 micrograms of C-14, whereas a similar hnount of modern wood would contain 100 micrograms. How old is the tool? 58 surface weat..pdf JoanneCarbonell .pdf PDFarrow_forward
- Activity 1.1 Write the nuclear reactions involved in the synthesis of each of the following new elements: c. Meitnerium (Z 109) was formed by cold fusion which involves the combination of Bi and Fe nuclides at ordinary temperature b. Mendelevium (2 101) was formed by reacting En-253 with alpha particles. a. Curium (Z - 96) was formed by reacting Pu-239 with alpha particles ¹2Hc. It has a half-life of 162 days.arrow_forwardThe half-life of Radium-221 is 30 seconds. Suppose we have a 320 g sample. (7.1) Find a formula for the mass remaining after t seconds. (7.2) Use the formula to determine how much of the sample remains after 210 seconds. (7.3) After how many minutes will only 10 g remain?arrow_forwardWrite a balanced equation for each of the following nuclear reactions: (a) bismuth-212 decays into polonium-212. (b) beryllium-8 and a positron are produced by the decay of an unstable nucleus. (c) neptunium-239 forms from the reaction of uranium-238 with a neutron and then spontaneously converts into plutonium-239. (d) strontium-90 decays into yttrium-90arrow_forward
- Identify X in each of the following nuclear reactions: (a) Z3068n+n01N2865i+X (b) P1530S1430i+X (c) P82214bB83214i+X (d) U92235+n014(n01)+Z3072n+X (e) T52130e+H12I53131+X (f) C2964u+XN2864iarrow_forward(Q102) What is the nuclear binding energy (in MeV) of the cadmium-100 nuclide? The atomic mass of cadmium-100 is 99.92029 amu. (You may assume that the given amu value includes a total of 100 electrons).arrow_forward
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