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GLY 3202 C - Module 3 Quiz with Correct Answers

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GLY 3202 C - Module 3 Quiz with Correct Answers what are the building blocks of minerals? - ANSWER-ions what is a cation? - ANSWER-an atom that has lost at least one electron. this is a ball and stick representation of a silica tetrahedron. which ion represents O? A (red ball on top of the cen...

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  • November 13, 2024
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  • 2024/2025
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EmilyCharlene
GLY 3202 C - Module 3 Quiz with
Correct Answers

what are the building blocks of minerals? - ANSWER✔✔-ions


what is a cation? - ANSWER✔✔-an atom that has lost at least one electron.


this is a ball and stick representation of a silica tetrahedron. which ion represents O?




A (red ball on top of the central cation)


B (white ball in the center) - ANSWER✔✔-A


which of these statements accurately describes the properties of the ionic radius? -

ANSWER✔✔-the ionic radius varies with charge and coordination


how would you describe the relationship between anions and cations in silicates? -

ANSWER✔✔-ionic radius of anions is usually bigger than cations.


a cation is bonded with 8 anions. what is the shape of the volume enclosed by the

surrounding anions (coordination polyhedron)? - ANSWER✔✔-cube


given the radius of Al as 0.53 and O as 1.26 what coordination polyhedron would you

predict using the following table?
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, divide 0.53/1.26 = radius ratio range 0.414-0.732 - ANSWER✔✔-octahedron


what is the electrostatic valence bond strength for AL +3 in 6-fold coordination with O2-

- ANSWER✔✔-0.5


which bond will be the hardest to break? (ca2+,si4+,al3+,o2-) - ANSWER✔✔-Si-O in 4-

fold coordination


how are mineral formulae constructed? - ANSWER✔✔-in order of decreasing

coordination number


how many Ca ions are required to balance the mineral formula:

CaxMg4Al(AlSi7)O22(OH)2?




valence states: Ca 2+, Mg 2+, Al 3+, Si4+, O2-, H+ - ANSWER✔✔-2


what are the two basic parameters that determine ease of substitution of cations in an

atomic structure? (Select 2)




-cation shape


-cation charge


-cation size

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