The compound gallium arsenide is a commonly used semiconductor,having an energy gap Eg of 1.43 eV. Its crystal structureis like that of silicon, except that half the silicon atoms are replacedby gallium atoms and half by arsenic atoms. Draw a flattened-outsketch of the gallium arsenide lattice, following the pattern.What is the net charge of the (a) gallium and (b) arsenic ioncore? (c) How many electrons per bond are there? (Hint: Consultthe periodic table in Appendix G.)
The compound gallium arsenide is a commonly used semiconductor,having an energy gap Eg of 1.43 eV. Its crystal structureis like that of silicon, except that half the silicon atoms are replacedby gallium atoms and half by arsenic atoms. Draw a flattened-outsketch of the gallium arsenide lattice, following the pattern.What is the net charge of the (a) gallium and (b) arsenic ioncore? (c) How many electrons per bond are there? (Hint: Consultthe periodic table in Appendix G.)
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter3: Atomic Shells And Classical Models Of Chemical Bonding
Section: Chapter Questions
Problem 38P: The percent ionic character of the bonds in several interhalogen Molecules (as estimated from their...
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The compound gallium arsenide is a commonly used semiconductor,
having an energy gap Eg of 1.43 eV. Its crystal structure
is like that of silicon, except that half the silicon atoms are replaced
by gallium atoms and half by arsenic atoms. Draw a flattened-out
sketch of the gallium arsenide lattice, following the pattern.What is the net charge of the (a) gallium and (b) arsenic ion
core? (c) How many electrons per bond are there? (Hint: Consult
the periodic table in Appendix G.)
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