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### callister7e_sm_ch02_19

Course: E 344, Fall 2009
School: Stevens
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Word Count: 137

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The 2-21 2.19 percent ionic character is a function of the electron negativities of the ions XA and XB according to Equation 2.10. The electronegativities of the elements are found in Figure 2.7. For MgO, XMg = 1.2 and XO = 3.5, and therefore, 2 % IC = 1 e ( 0.25) (3.5 1.2) 100 = 73.4% For GaP, XGa = 1.6 and XP = 2.1, and therefore, 2 %IC = 1 e ( 0.25) (2.1 1.6) 100 = 6.1% For CsF, XCs = 0.7 and XF...

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The 2-21 2.19 percent ionic character is a function of the electron negativities of the ions XA and XB according to Equation 2.10. The electronegativities of the elements are found in Figure 2.7. For MgO, XMg = 1.2 and XO = 3.5, and therefore, 2 % IC = 1 e ( 0.25) (3.5 1.2) 100 = 73.4% For GaP, XGa = 1.6 and XP = 2.1, and therefore, 2 %IC = 1 e ( 0.25) (2.1 1.6) 100 = 6.1% For CsF, XCs = 0.7 and XF = 4.0, and therefore, 2 %IC = 1 e ( 0.25) (4.0 0.7 ) 100 = 93.4% For CdS, XCd = 1.7 and XS = 2.5, and therefore, 2 %IC = 1 ( e 0.25) (2.5 1.7 ) 100 = 14.8% For FeO, XFe = 1.8 and XO = 3.5, and therefore, 2 %IC = 1 e ( 0.25) (3.5 1.8) 100 = 51.4% Excerpts from this work may be reproduced by instructors for distribution on a not-for-profit basis for testing or instructional purposes only to students enrolled in courses for which the textbook has been adopted. Any other reproduction or translation of this work beyond that permitted by Sections 107 or 108 of the 1976 United States Copyright Act without the permission of the copyright owner is unlawful.
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