covalent bonding Flashcards
when are covalent bonds formed?
when non-metal atoms share pairs of electrons.
Covalent bonds are_____.
strong
what do many covalent compounds consist of?
consist of small, simple molecules e.g., oxygen, chlorine and
water.
what are covalent compounds usually? ( states of matter )
gases or liquids with low melting and boiling points.
what type of forces do small covalent molecules have?
have weak intermolecular forces between the molecules.
what happens when covalent molecules are heated?
the intermolecular forces that break not the covalent bonds.
does simple covalent molecules conduct electricity + why?
do not conduct electricity because the molecules do not have
an overall charge.
what are polymers?
very large molecules held together by strong covalent bonds.
what do some covalent bonded substances have?
have giant structures eg silicon dioxide , diamond and graphite.
what do giant covalent structures have? (melting + boiling points)
very high melting and boiling points.
