Connect 1-Semester Online Access for Principles of General, Organic & Biochemistry
2nd Edition
ISBN: 9780077633707
Author: Janice Smith
Publisher: Mcgraw-hill Higher Education (us)
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Chapter 2.6, Problem 2.25P
(a)
Interpretation Introduction
Interpretation:
The ground state electronic configuration of aluminium has to be given.
Concept Introduction:
The distribution of electrons in various orbitals is known as electronic configuration.
The filling of orbitals in the ground state is determined by the following rule:
Aufbau Principle:
The Aufbau principle states that in the ground state of an atom the orbital with lower energy are filled up first before the filling of the orbital with the higher energy commences.
(b)
Interpretation Introduction
Interpretation:
The ground state electronic configuration of Chlorine has to be given.
Concept Introduction:
Refer to part (a).
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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?
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Silicon (Si) is the most common chemical element in today's
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How many protons and how many neutrons are in the nucleus of
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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) 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 2 Solutions
Connect 1-Semester Online Access for Principles of General, Organic & Biochemistry
Ch. 2.1 - Give the symbol for each element. a. calcium, a...Ch. 2.1 - Prob. 2.2PCh. 2.1 - Give the name corresponding to each element...Ch. 2.1 - Locate each element in the periodic table and...Ch. 2.1 - Classify each micronutrient in Figure 2.2 as a...Ch. 2.1 - Identify the elements used in each example of...Ch. 2.1 - Identify the elements in each chemical formula,...Ch. 2.1 - Prob. 2.8PCh. 2.2 - Prob. 2.9PCh. 2.2 - Prob. 2.10P
Ch. 2.2 - Prob. 2.11PCh. 2.2 - Prob. 2.12PCh. 2.2 - Prob. 2.13PCh. 2.3 - Prob. 2.14PCh. 2.3 - Prob. 2.15PCh. 2.3 - Prob. 2.16PCh. 2.3 - Prob. 2.17PCh. 2.3 - Prob. 2.18PCh. 2.4 - Prob. 2.19PCh. 2.4 - Give the period and group number for each element:...Ch. 2.4 - Prob. 2.21PCh. 2.4 - Prob. 2.22PCh. 2.5 - Prob. 2.23PCh. 2.6 - Prob. 2.24PCh. 2.6 - Prob. 2.25PCh. 2.6 - Prob. 2.26PCh. 2.7 - Identify the total number of electrons, the number...Ch. 2.7 - Prob. 2.28PCh. 2.7 - Prob. 2.29PCh. 2.8 - Which element in each pair has the larger atomic...Ch. 2.8 - Which element in each pair has the higher...Ch. 2.8 - Prob. 2.32PCh. 2 - Identify the elements used in each example of...Ch. 2 - Prob. 2.34UKCCh. 2 - Prob. 2.35UKCCh. 2 - Prob. 2.36UKCCh. 2 - Prob. 2.37UKCCh. 2 - Prob. 2.38UKCCh. 2 - Prob. 2.39UKCCh. 2 - Prob. 2.40UKCCh. 2 - Prob. 2.41UKCCh. 2 - Prob. 2.42UKCCh. 2 - Prob. 2.43UKCCh. 2 - Prob. 2.44UKCCh. 2 - Prob. 2.45APCh. 2 - Prob. 2.46APCh. 2 - Prob. 2.47APCh. 2 - Identify the elements in each chemical formula and...Ch. 2 - Prob. 2.49APCh. 2 - Prob. 2.50APCh. 2 - Prob. 2.51APCh. 2 - Prob. 2.52APCh. 2 - Prob. 2.53APCh. 2 - Prob. 2.54APCh. 2 - Prob. 2.55APCh. 2 - Prob. 2.56APCh. 2 - Prob. 2.57APCh. 2 - Prob. 2.58APCh. 2 - The most common isotope of oxygen has a mass...Ch. 2 - Prob. 2.60APCh. 2 - Prob. 2.61APCh. 2 - Prob. 2.62APCh. 2 - Prob. 2.63APCh. 2 - Prob. 2.64APCh. 2 - Prob. 2.65APCh. 2 - Prob. 2.66APCh. 2 - Prob. 2.67APCh. 2 - Prob. 2.68APCh. 2 - Prob. 2.69APCh. 2 - Prob. 2.70APCh. 2 - Prob. 2.71APCh. 2 - Prob. 2.72APCh. 2 - Prob. 2.73APCh. 2 - Prob. 2.74APCh. 2 - Prob. 2.75APCh. 2 - Prob. 2.76APCh. 2 - Prob. 2.77APCh. 2 - Prob. 2.78APCh. 2 - Prob. 2.79APCh. 2 - Prob. 2.80APCh. 2 - Prob. 2.81APCh. 2 - Prob. 2.82APCh. 2 - Prob. 2.83APCh. 2 - Arrange the elements in each group in order of...Ch. 2 - Prob. 2.85APCh. 2 - Prob. 2.86APCh. 2 - Answer the following questions about...Ch. 2 - Prob. 2.88APCh. 2 - Prob. 2.89APCh. 2 - (a) What is the chemical formula for...Ch. 2 - Prob. 2.91CPCh. 2 - Prob. 2.93BTCCh. 2 - Prob. 2.95BTC
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