True and False
Each carbon atom in graphite bonds to four other atoms.
False(it bonds to 3)
Graphite can conduct electricity because of________electrons.
delocalized(free)
Ionic bond
A bond formed by the transfer of electrons ,creating oppositely charged ions.
Sodium chloride is a covalent compound
False(it is ionic)
Sodium chloride conducts electricity when _______ or dissolved in water.
molten(or dissolved)
Allotrope
Different structural forms of the same element.
Diamonds are soft because of its layered structure
False(diamonds are very hard)
______is an very hard allotrope of carbon that is very hard.
Diamond
Delocalized electrons
Electrons that are free to move within a structure.
The layers of graphite can slide over each other easily
True
The layers in graphite are held together by weak_______forces.
Van der Waals
Van der Waals forces
Weak forces of attraction between molecules or layers.