Metal
Lustruous, malleable , ductile , dense , conductive , solid at room temp
Non metal
poor conductors of heat and electricity , brittle , low melting and boiling point , pull , most are gasses at room temp, low density
Metalloids
Solids that can be shiny or dull , semi conduct electricity and heat, non malleable , not ductile
Acid
Conduct electrical current , have sour taste , turns litmus paper red , react with some active metals , neutralised by base , corrosive
Bases
Caustic , have soapy , slimy feel , turns red litmus paper blue , bitter taste , conduct electricity , neutralised by acids
Examples of acids
lemon, vinegar, oranges
Examples of bases
baking soda, milk, ammonia