Characteristics of metals and non metals with example?

1.	Characteristics of metals and non metals with example?
Answer» Physical properties of metal\tMetals are solid except mercury that is found in liquid state at room temperature.\tThey are hard and tough except sodium and potassium that can be cut with a knife.\tThey are lustrous i.e. they shine in light because metals possess free electrons that vibrates on getting in contact with light.\tThey have high melting points except caesium and gallium have very low melting point.\tThey are good conductors of heat and electricity. The best conductors of electricity are silver and copper whereas lead and mercury are comparatively poor conductors.Physical properties of non-metals\tNon-metals may be either solids, liquids or gases.\tSolid non-metals are brittle and break down into powdery mass on striking with a hammer except diamond which is the hardest non-metal.\tThey have a dull luster but iodine is lustorous.\tThey have low melting points except diamond that has very high melting point.\tThey are poor conductors of heat and electricity except graphite.\tThey are not malleable.\tThey are not ductile.\tThey are not sonorous.\tExamples are carbon, Sulphur, oxygen, phosphorous and many more.

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