Non-Metals

Subject: Science

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Non-metals are the elements in groups 14-16 of the periodic table.
Non-metals are a bad conductor of electricity or heat.
Silicon is not found in a pure state. Silicon is the most abundant electropositive element in The Earth’s crust.
Sulphur is a chemical element with symbol S and atomic number 16.
Dolomite and Gypsum are the ores of sulphur.
Silica and Feldspar are the ores of silicon.