Biology
12th Edition
ISBN: 9780078024269
Author: Sylvia Mader, Michael Windelspecht
Publisher: McGraw-Hill Education
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Chapter 2.1, Problem 2CYP
Examine the periods and groups from the periodic table to determine the electron configuration of chlorine.
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Look up the valence electron configuration, covalent atomic radius, effective nuclear charge, first ionization energy and Pauling
electronegativity in Chapter 8 (tables are attached). Examine the above data and answer the following questions.
a) Explain why some of the elements like TI and Pb on the lower left of the p block are metallic.
b) Explain why some of the elements like C, Si in the center of the p block form covalent bonds. Explain why these bonds formed
by the network of these elements (as studied in Chapter 25) tend to be unreactive.
c) Explain why the noble Group 8A elements are highly unreactive gases.
d) Explain why some elements like F, CI, Br etc, on the upper right of the p block are highly reactive nonmetals.
The atomic emission spectrum for a particular element includes blue-violet light with wavelength 440. nm. Calculate the energy in joules of this light given that E = h c/A, and h =
6.63 x 10-34Js, and c = 3.00 x 10°m/s. (h andc are constants, A is wavelength, convert nm into m)
h c
E =
Element Z forms an ion Z 3+, which contains 31 protons. What is the identity of Z, and how many electrons does Z3+have?
Chapter 2 Solutions
Biology
Ch. 2.1 - Prob. 1CYPCh. 2.1 - Examine the periods and groups from the periodic...Ch. 2.1 - Prob. 3CYPCh. 2.2 - Compare and contrast an ionic bond with a covalent...Ch. 2.2 - Prob. 2CYPCh. 2.2 - Prob. 3CYPCh. 2.3 - Explain how water’s structure relates to the...Ch. 2.3 - Prob. 2CYPCh. 2.3 - Prob. 3CYPCh. 2.4 - Explain the difference in H+ concentration between...
Ch. 2.4 - Prob. 2CYPCh. 2.4 - Prob. 3CYPCh. 2 - Prob. 1BS.1QCCh. 2 - Prob. 1BS.2QCCh. 2 - Prob. 1BS.3QCCh. 2 - Prob. 1ACh. 2 - Prob. 2ACh. 2 - Prob. 3ACh. 2 - Prob. 4ACh. 2 - Prob. 5ACh. 2 - Prob. 6ACh. 2 - Prob. 7ACh. 2 - Prob. 8ACh. 2 - Prob. 9ACh. 2 - Prob. 10ACh. 2 - Prob. 11ACh. 2 - Prob. 12ACh. 2 - Prob. 13ACh. 2 - Prob. 14ACh. 2 - Prob. 15ACh. 2 - Prob. 1TSCh. 2 - Prob. 2TSCh. 2 - Prob. 3TSCh. 2 - Prob. 4TSCh. 2 - Prob. 5TS
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