bonding Flashcards
ionic bonding
electrostatic forces
covalent bonding
intermolecular forces
why ionic compounds have high melting points
strong electrostatic attraction between oppositely charged ions so a large amount of energy is needed to overcome attraction
why ionic compounds only conduct when molten
solid ions in fixed positions dont move but when molten ions can move
why covalent structures have low boiling point
weak intermolecular forces so little thermal energy required to overcome the forces
why giant covalent structures have high boiling point
many strong covalent bonds which require a large amount of energy to be broken
why is graphite slippery
arranged in layers and layers can slide over each other because of weak forces of attraction between layers
giant covalent structures
strong covalent bonds