Metals and Non-Metals

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Matter - Something that has mass and occupies space.

Substance - Has only a kind of particles. eg. Sugar

Mixture - Has different particles. eg.Bhel

Element - Made from atoms.

Compound - Contains elements in a fixed proportion (molecules).

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Lists

Metals

Cobalt Uranium Zinc

Aurum Argentum Cuprum

Nickle Barium Galium

Sodium Pottasium

Lithium Manganesee

Metalloid

Boron B

Silicon Si

Germanium Gi

Arsenic As

Inert Gas

Neon Ne

Helium He

Argon Ar

Krypton Kr

Xenon

Radon

Non - Metals

Phosphorous

Sulphur

Carbon

Oxygen

Hydrogen

Nitrogen

Chlorine

Fluroine

Bromine

Iodine

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Properties of Metals

Hard

Metals are hard.

Exception - Na - Sodium, K - Pottasium - Both can be cut by the knife.

Physical State

Metals are generally solid at room temperature.

Exception - Hg (hydrargyrum) Mercury .

Melting Point

Metals have a high melting point.

Exception - Liquid metal - Hg

Cesium Ce

Gallium Ga

Boiling Point

Metals have a high melting point.

Lustre

Shining. The surface of metals reflects when light falls on them.

Exception - Lead, Na, K, Ca

Malleability

On hammering, metals get converted into sheets his property is called malleability.

Most malleable - Gold

Non-malleable - Zinc, Mercury