New Concepts/Shortcuts 22 Flashcards
1
Q
covalent bonds are strong and directional in nature
true or false?
A
true
2
Q
can network solids decompose on heating?
A
They have extremely high melting points and may even decompose before melting
3
Q
are network solids insulators or conductors?
A
insulators
4
Q
eg of covalent or network solids?`
A
diamond and silicon carbide
and graphite but it is soft and is a conductor of electricity
4
Q
why is graphite exceptional for network solids?
A
because it has a typical structure
5
Q
why is graphite a food solid lubricant?
A
different layers can slide over in graphite
6
Q
location of tetrahedral voids
A
7
Q
location of octahedral voids?
A
