In the crystal of graphite, each carbon atom is covalently bonded to ... other carbon atoms arranged tetrahedrally around it.
Four.
Two.
One.
Three.
Diamond has a very high melting point and is resistant to chemical attack due to:
The strength of the covalent and ionic bonds in its crystals lattice.
The strength of the dative covalent bonds in its crystals lattice.
The strength of the metallic bonds in its crystals lattice.
The strength of the covalent bonds in its crystals lattice.
The different forms of the same element that exist in the same physical state are called:
Allotropy.
Allotropes.
Isotopy.
Polymorphism.
Grapgihte is a conductor of electricity because:
There are free electrons in its crystal lattice since all of the four valence electrons are not used in bonding.
There are no free electrons in its crystal lattice since all of the four valence electrons are used in bonding.
There are free ions in its crystal lattice since all of the four valence electrons are not used in bonding.
There are no free electrons in its crystal lattice since all of the five valence electrons are used in bonding.
