Environmental Geochemistry -
Part I - Faure (1998) Chapter 7 Problems 1 & 7, p. 97-98
#1!modified: Determine the percent ionic character of the following bonds based
on the electronegativity differences:
a)!NaCl![note: I have modified the compounds list from Faureʼs exercise]
b)!SiO2!
c)!Fe2O3
d)!O2
e)!Al2O3
f)!MgO
g)!Na2O
h)!CaO
i)!K2O
---!Next, list all of the above compounds, except a and d, in order from most
covalent to most ionic. Notice that these are the major elements bonding with
oxygen in silicate minerals. Compare with Figure 7.1 C in Faure (1998).
#7!optional: You may skip this one. But if you would like to do it, the problem is
worked out for 3-fold planar structure on p. 90 of the text.
Part II - Faure (1998) Chapter 8 Problems 1, 2, 4 & 7, p. 108
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