non-metal & non-metal
eletrastatic attraction
between share eletrons
and two atoms
covalent bonding
conduct eletricity (graphite
Gaint covalent structrue
high melting point & boiling
simple covalent
compound
have low melting point & boiling point
the intermolecular forces are very weak
Do not conduct eletricity
on free eletrons or ions
non-metal & metal
eletrastatic attraction
between the oppsitely
charge ions
brittle
chemical bonding
ionic bonding
Gaint ionic structrue
conduct eletricity when molten or
dissolve
high melting point & boiling
have high melting point & boiling
attracted strong electrostatic
they are solid at room teamperature
there are regular arrangement of the ions in
structrue
they often soluble in water
water is attracted to charged ions and
therefore many ionic solid dissolve.
conduct eletricity when molten or
dissolve in water
ions can free to move
ionic compound
metal
eletrastatic attraction
metallic bonding
between metal cation and
delocalised eletron
malleable, ductile
Gaint metallic structrue
conduct eletricity
high melting point & boiling