Concept explainers
(a)
Interpretation:
Most important crystal force of Pb has to be given.
Concept introduction:
There are four types of crystals are present.
(1) Ionic,
(2) Metallic,
(3) Covalent network, and
(4) Molecular.
Ionic solid:
The bonding between the atoms is ionic, it is hard and high melting point.
Metallic solid:
The bonding between the atoms is metallic, its melting point is hard (depends on the bonding nature).
Covalent network:
The bonding between the atoms is covalent, it is hard and high melting point.
Molecular;
The bonding between the atoms is weak nonbonding force like Hydrogen Bonding, Dipole-Dipole, London Dispersion, it has low melting point.
(b)
Interpretation:
Most important crystal force of
Concept introduction:
Refer to part (a)
(c)
Interpretation:
Most important crystal force of
Concept introduction:
Refer to part (a)
(d)
Interpretation:
Most important crystal force of buckyballs has to be given.
Concept introduction:
Refer to part (a)
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