metals non metals and metalloids questions

Introduction - Earth is an abundant source of materials. The air we breathe, the water we drink, stones and rocks, almost everything that is around us, are all useful to man for some purpose or the othe..

Non Metals - Introduction - Non-metals are the elements in groups 14-18 of the periodic table. Non-metals are not able to conduct electricity or heat very well. As opposed to metals, non-metallic elements are very brittle, and cannot be ro..

Hydrogen is a non-metal like halogen..

Hydrogen, like the alkali metals, combines readily with non-metals like halogens, oxygen, sulphur, et..

Both lithium and sodium combine directly with hydrogen, sulphur, halogens and other non-metals on heatin..

Non-metallic coatings include painting, varnishing tarring, plastic coating, oiling, greasing, enamelling etc. As matter of fact, every housewife knows that applying a thin layer of oil on the surface of iron utensils and implements will prevent their rustin..

Nitrogen reacts with many non-metals under suitable conditions. For example with hydrogen: ..

They are generally non-lustrous, brittle, poor conductors of heat and electricity. For example: Sulphur, phosphorus, nitrogen e..

Hydrogen combines with non-metals, to give the respective hydrides. With oxygen Hydrogen burns in oxygen to form water. Instead of igniting the mixture, if a small quantity of well divided platinum is added to the mixture of the two gases, they instantly combine to form water. The pl..

Iron forms ferric chloride when heated with chlorine. Iron forms ferrous sulphide when heated with sulphur. ..