Chemistry In Context
9th Edition
ISBN: 9781259638145
Author: Fahlman, Bradley D., Purvis-roberts, Kathleen, Kirk, John S., Bentley, Anne K., Daubenmire, Patrick L., ELLIS, Jamie P., Mury, Michael T., American Chemical Society
Publisher: Mcgraw-hill Education,
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Question
Chapter 6, Problem 43Q
Interpretation Introduction
Interpretation:
Given statements regarding watches using tritium have to be evaluated and also in those watches chemical form of tritium and its role has to be given.
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As recently as the late 1970s, some wrist watches were manufactured using tritium (3H) as a continuous source of energy to make the watch face luminous in the dark. If you had purchased such a watch 43 years ago, what percentage of the luminosity would remain today, based on the half-life of tritium (4500 days)?
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Despite the similarities in the chemical reactivity of elements in the lanthanide series, their abundances in Earth’s crust vary by two orders of magnitude. This graph shows the relative abundance as a function of atomic number. Which of the following statements best explains the sawtooth variation across the series? The elements with an even atomic number have a magic number of protons.
Chapter 6 Solutions
Chemistry In Context
Ch. 6.1 - A trace amount of a third isotope, U-234, is also...Ch. 6.1 - Prob. 6.3YTCh. 6.1 - Prob. 6.4YTCh. 6.2 - Prob. 6.5YTCh. 6.2 - Prob. 6.6YTCh. 6.2 - Prob. 6.7YTCh. 6.2 - Prob. 6.8YTCh. 6.3 - Prob. 6.9YTCh. 6.3 - Prob. 6.10YTCh. 6.4 - Prob. 6.11YT
Ch. 6.4 - Prob. 6.12YTCh. 6.4 - Prob. 6.13YTCh. 6.4 - Prob. 6.14YTCh. 6.5 - Equation 6.10 represents the combustion of...Ch. 6.5 - Prob. 6.16YTCh. 6.5 - Prob. 6.17YTCh. 6.6 - Prob. 6.18YTCh. 6.6 - Prob. 6.19YTCh. 6.6 - Prob. 6.20YTCh. 6.7 - Prob. 6.21YTCh. 6.7 - Prob. 6.22YTCh. 6.7 - Prob. 6.23YTCh. 6.8 - Prob. 6.24YTCh. 6.8 - Prob. 6.25YTCh. 6.8 - Last we heard. New Jersey was not volunteering to...Ch. 6.8 - Prob. 6.27YTCh. 6.8 - Prob. 6.28YTCh. 6.8 - Prob. 6.29YTCh. 6 - Prob. 6.1YTCh. 6 - Name two ways in which one carbon atom can differ...Ch. 6 - Prob. 2QCh. 6 - a. How many protons are in the nucleus of this...Ch. 6 - Prob. 4QCh. 6 - Prob. 5QCh. 6 - Prob. 6QCh. 6 - Prob. 7QCh. 6 - Prob. 8QCh. 6 - Prob. 9QCh. 6 - Prob. 10QCh. 6 - Prob. 11QCh. 6 - Prob. 12QCh. 6 - Prob. 13QCh. 6 - Prob. 14QCh. 6 - Prob. 15QCh. 6 - Prob. 16QCh. 6 - Prob. 17QCh. 6 - Prob. 18QCh. 6 - Prob. 19QCh. 6 - Prob. 20QCh. 6 - Prob. 21QCh. 6 - Every year, 5.6 1021 kJ of energy comes to Earth...Ch. 6 - Prob. 23QCh. 6 - Prob. 24QCh. 6 - Prob. 25QCh. 6 - Prob. 26QCh. 6 - Prob. 27QCh. 6 - Prob. 28QCh. 6 - Prob. 29QCh. 6 - Prob. 30QCh. 6 - Prob. 31QCh. 6 - Prob. 32QCh. 6 - Prob. 33QCh. 6 - Prob. 34QCh. 6 - Prob. 35QCh. 6 - Prob. 36QCh. 6 - Prob. 37QCh. 6 - Prob. 38QCh. 6 - Prob. 39QCh. 6 - Prob. 40QCh. 6 - Prob. 41QCh. 6 - Prob. 42QCh. 6 - Prob. 43QCh. 6 - Prob. 44QCh. 6 - Prob. 45QCh. 6 - Prob. 46QCh. 6 - Prob. 48QCh. 6 - Prob. 50Q
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- Francium was discovered as a minor decay product of actinium-227. Write the nuclear equation for the decay of actinium-227 by alpha emission.arrow_forwardExplain why 13N is more likely to undergo electron capture than alpha particle decayarrow_forwardWhat is the major product of ionizing radiation? Write the mechanism for the formation of this product. Every day we are exposed to ionizing radiation such as x-rays, ultraviolet radiation from the sun, etc. How are we protected from the effect of this radiation? Explain.arrow_forward
- Write the balanced nuclear reaction for the decay of iodine-137 to xenon-137. Write the balanced nuclear reaction for the decay of xenon-137 to cesium-137.arrow_forwardIf exactly 1.00 μg of 226Ra was used to paint the glow-in-the-dark dial of a wristwatch made in 1914, how radioactive is the watch in 2011? Express your answer in becquerels (Bq). The half-life of 226Ra is 1.60 ×× 103 years.arrow_forward7. If the laws of physics were different and the primary element in the universe were boron-11 (Z = 5), what would be the following four most abundant elements? Propose nuclear reactions for their formation.arrow_forward
- Despite the similarities in the chemical reactivity of elementsin the lanthanide series, their abundances in Earth’scrust vary by two orders of magnitude. This graph showsthe relative abundance as a function of atomic number.Which of the following statements best explains the sawtoothvariation across the series?(a) The elements with an odd atomic number lie above thebelt of stability.(b) The elements with an odd atomic number lie belowthe belt of stability.(c) The elements with an even atomic number have amagic number of protons.(d) Pairs of protons have a special stability.arrow_forwardwrite the nuclear equation for the radioactive decay of boron-12arrow_forwardWrite the radioactive decay stated in the following.a. positron emission of Cerium-138b. beta emission of a radioactive nuclide to form Caesium-134c. alpha decay of Erbium-162d. nuclear fission of Uranium-235 to form Caesium-135, four neutrons, and an unknown nuclidee. gamma decay of Gadolinium-152 from its metastable statef. neutron bombardment of a nuclide to produce Vanadium-52 and a protonarrow_forward
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