Solid State Flashcards
1
Q
NaCl (rock salt) structure?
A
FCC
2
Q
In fluorite structure, calcium ions occupy ______ and fluoride ions occupy _______________
A
fcc
tetrahedral ions
3
Q
NH3 and HCl is what kind of solid?
A
Polar molecular (not hydrogen bonded)
4
Q
Covalent crystals are also called?
A
Giant molecules
5
Q
Bravais named after?
A
French mathematician
6
Q
Examples of cubic crystal?
A
NaCl , ZnS, Cu
7
Q
Examples of tetragonal
A
White tin, SnO2 ,TiO2, CaSO4
8
Q
Orthorhombic
A
Rhombic sulfur, KNO3, BaSO4
9
Q
Hexagonal examples
A
Graphite, ZnO, CdS
10
Q
Rhombohedral examples
A
CaCO3, HgS
11
Q
Monoclinic examples
A
Monoclinic sulphur, Na2SO4. 10H2O
12
Q
Triclinic examples
A
K2CR2O7, CUSO4.5H2O, H3BO3
13
Q
Location of tetrahedral voids
A
Two on each diagonal
14
Q
Location of octahedral voids
A
Center, edge
15
Q
Schottky pairs in NaCl
A
10^6 per cm³
