Basic Chemistry (5th Edition)
5th Edition
ISBN: 9780134138046
Author: Karen C. Timberlake
Publisher: PEARSON
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Textbook Question
Chapter 5.6, Problem 5.51QAP
What do the group numbers from 1A (1) to 8A (18) for the elements indicate about electron configurations of those elements?
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Boron, atomic number 5, occurs naturally as two isotopes, 10B and 11B, with natural abundances of 19.9% and 80.1%, respectively.
(a) In what ways do the two isotopes differ from each other? Does the electronic configuration of 10B differ from that of 11B?
(b) Draw the orbital diagram for an atom of 11B. Which electrons are the valence electrons?
(c) Indicate three ways in which the 1s electrons in boron differ from its 2s electrons.
(d) Elemental boron reacts with fluorine to form BF3, a gas. Write a balanced chemical equation for the reaction of solid boron with fluorine gas.
(e) ΔHf° for BF3(g) is -1135.6 kj/mol. Calculate the standard enthalpy change in the reaction of boron with fluorine.
(f) Will the mass percentage of F be the same in 10BF3 and 11BF3? If not, why is that the case?
(a) Write out the full electron configuration of Calcium (Ca). (b) How many electrons are in the n=3 shell of Calcium?
Boron, atomic number 5, occurs naturally as two isotopes, 10B and 11B, with natural abundances of 19.9% and 80.1%, respectively.(a) In what ways do the two isotopes differ from each other? Does the electronic configuration of 10B differ from that of 11B? (b) Drawthe orbital diagram for an atom of 11B. Which electrons are the valence electrons? (c) Indicate three ways in which the 1s electrons inboron differ from its 2s electrons. (d) Elemental boron reacts with fluorine to form BF3, a gas. Write a balanced chemical equation forthe reaction of solid boron with fluorine gas. (e) ΔHf° for BF31g2 is -1135.6 kJ>mol. Calculate the standard enthalpy change in thereaction of boron with fluorine. (f) Will the mass percentage of F be the same in 10BF3 and 11BF3? If not, why is that the case?
Chapter 5 Solutions
Basic Chemistry (5th Edition)
Ch. 5.1 - What is meant by the wavelength of UV light?Ch. 5.1 - How are the wavelength and frequency of light...Ch. 5.1 - What is the difference between “white” light and...Ch. 5.1 - Prob. 5.4QAPCh. 5.1 - Prob. 5.5QAPCh. 5.1 - AM radio waves have a frequency of 8105s-1 ....Ch. 5.1 - Prob. 5.7QAPCh. 5.1 - Prob. 5.8QAPCh. 5.1 - Which ty pe of electromagnetic radiation, cell...Ch. 5.1 - Prob. 5.10QAP
Ch. 5.1 - Prob. 5.11QAPCh. 5.1 - Prob. 5.12QAPCh. 5.1 - Place the following types of electromagnetic...Ch. 5.1 - Prob. 5.14QAPCh. 5.2 - What feature of an atomic spectrum indicates that...Ch. 5.2 - Prob. 5.16QAPCh. 5.2 - Prob. 5.17QAPCh. 5.2 - Prob. 5.18QAPCh. 5.2 - Prob. 5.19QAPCh. 5.2 - Identify the photon in each pair with the greater...Ch. 5.3 - Describe the shape of each of the following...Ch. 5.3 - Prob. 5.22QAPCh. 5.3 - Prob. 5.23QAPCh. 5.3 - Prob. 5.24QAPCh. 5.3 - Prob. 5.25QAPCh. 5.3 - Prob. 5.26QAPCh. 5.3 - Prob. 5.27QAPCh. 5.3 - Prob. 5.28QAPCh. 5.4 - Compare the terms electron configuration and...Ch. 5.4 - Prob. 5.30QAPCh. 5.4 - 5.31 Draw the orbital diagram for each of the...Ch. 5.4 - 5.32 Draw the orbital diagram for each of the...Ch. 5.4 - Prob. 5.33QAPCh. 5.4 - Prob. 5.34QAPCh. 5.4 - Prob. 5.35QAPCh. 5.4 - Prob. 5.36QAPCh. 5.4 - Prob. 5.37QAPCh. 5.4 - Prob. 5.38QAPCh. 5.4 - Prob. 5.39QAPCh. 5.4 - Prob. 5.40QAPCh. 5.5 - Use the sublevel blocks on the periodic table to...Ch. 5.5 - Prob. 5.42QAPCh. 5.5 - Prob. 5.43QAPCh. 5.5 - Prob. 5.44QAPCh. 5.5 - Prob. 5.45QAPCh. 5.5 - Prob. 5.46QAPCh. 5.5 - Use the periodic table to give the symbol of the...Ch. 5.5 - Prob. 5.48QAPCh. 5.5 - Prob. 5.49QAPCh. 5.5 - Use the periodic table to give the number of...Ch. 5.6 - What do the group numbers from 1A (1) to 8A (18)...Ch. 5.6 - Prob. 5.52QAPCh. 5.6 - Write the group number using both A/B and 1 to 18...Ch. 5.6 - Prob. 5.54QAPCh. 5.6 - Prob. 5.55QAPCh. 5.6 - Prob. 5.56QAPCh. 5.6 - Prob. 5.57QAPCh. 5.6 - Indicate the number of valence electrons in each...Ch. 5.6 - Write the group number and draw the Lewis symbol...Ch. 5.6 - Prob. 5.60QAPCh. 5.6 - Prob. 5.61QAPCh. 5.6 - Prob. 5.62QAPCh. 5.6 - Prob. 5.63QAPCh. 5.6 - Prob. 5.64QAPCh. 5.6 - Prob. 5.65QAPCh. 5.6 - Prob. 5.66QAPCh. 5.6 - Prob. 5.67QAPCh. 5.6 - Prob. 5.68QAPCh. 5.6 - Prob. 5.69QAPCh. 5.6 - Prob. 5.70QAPCh. 5.6 - Prob. 5.71QAPCh. 5.6 - Fill in each of the following blanks using higher...Ch. 5.6 - Prob. 5.73QAPCh. 5.6 - Prob. 5.74QAPCh. 5.6 - Prob. 5.75QAPCh. 5.6 - Prob. 5.76QAPCh. 5 - Prob. 5.77FUCh. 5 - Prob. 5.78FUCh. 5 - Prob. 5.79UTCCh. 5 - Prob. 5.80UTCCh. 5 - Prob. 5.81UTCCh. 5 - Prob. 5.82UTCCh. 5 - Prob. 5.83UTCCh. 5 - Prob. 5.84UTCCh. 5 - Prob. 5.85UTCCh. 5 - Prob. 5.86UTCCh. 5 - Prob. 5.87AQAPCh. 5 - Prob. 5.88AQAPCh. 5 - Prob. 5.89AQAPCh. 5 - Prob. 5.90AQAPCh. 5 - Prob. 5.91AQAPCh. 5 - Prob. 5.92AQAPCh. 5 - 5.93 a. What electron sublevel starts to fill...Ch. 5 - Prob. 5.94AQAPCh. 5 - Prob. 5.95AQAPCh. 5 - Prob. 5.96AQAPCh. 5 - Prob. 5.97AQAPCh. 5 - Prob. 5.98AQAPCh. 5 - Prob. 5.99AQAPCh. 5 - Prob. 5.100AQAPCh. 5 - Prob. 5.101AQAPCh. 5 - Prob. 5.102AQAPCh. 5 - Prob. 5.103AQAPCh. 5 - Why is the ionization energy of Br lower than that...Ch. 5 - Prob. 5.105AQAPCh. 5 - Prob. 5.106AQAPCh. 5 - Prob. 5.107AQAPCh. 5 - Prob. 5.108AQAPCh. 5 - Prob. 5.109AQAPCh. 5 - Prob. 5.110AQAPCh. 5 - Prob. 5.111AQAPCh. 5 - Prob. 5.112AQAPCh. 5 - Prob. 5.113CQCh. 5 - Prob. 5.114CQCh. 5 - Prob. 5.115CQCh. 5 - Prob. 5.116CQCh. 5 - Prob. 5.117CQCh. 5 - Prob. 5.118CQCh. 5 - Prob. 5.119CQCh. 5 - Prob. 5.120CQ
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