\t\t\tMeaningMetals refers to the natural elements that are hard, shiny, opaque and dense.Non-metals implies those chemical substances that are soft, non-shiny, transparent and brittle.NatureElectropositiveElectronegativeStructureCrystallineAmorphicPhysical State at room temperatureSolid (except mercury and gallium)Solid or gas (except Bromine)DensityHigh densityLow densityAppearanceLustrousNon-lustrousHardnessMost metals are hard, except sodium.Most metals are soft, except diamond.MalleabilityMalleableNon-malleableDuctilityDuctileNon-ductileSonorousSonorousNon-sonorousConductionGood conductor of heat and electricityPoor conductor of heat and electricityMelting and Boiling pointVery high melting and boiling point.Low melting and boiling point.Electrons1 to 3 electrons in the outer shell.4 to 8 electrons in the outer shell.OxygenReact with oxygen and form basic oxides.React with oxygen and form acidic oxides.AcidReact with acids and produce hydrogen gas.Do not usually react with acid\t

1.	Different b/w metal and non metal?
Answer» Metals are the electropositive elements which loose electrons to complete their octet Non metals are the electro negetive element which gains electrons		BASIS FOR COMPARISON	METALS	NON-METALS
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