Comparison of physical and chemical properties of metals and non – metals:-
|1||Physical State||Metals are solid at room
temperature. Except mercury and gallium.
exist as solids and gases, except Bromine.
|2||Melting and boiling points||Metals generally have
high m.pt and b.pt except gallium and cesium.
|Non-metals have low
m.pt and b.pt except diamond and graphite.
|3||Density||Generally high.||Generally low.|
|4||Malleability and Ductility||Malleable and ductile.||Neither malleable nor
|5||Electrical and thermal conductivity||Good conductors of heat
conductors of heat and electricity except graphite.
|6||Luster||Poses shining luster.||Do not have luster
|7||Sonorous sound||Give sonorous sound
|Does not give
|8||Hardness||Generally hard except
|Solid non-metals are
generally soft except diamond.