Question

How do Metals and nonmetals are prepared?

Answer 1

The physical properties make them useful for many purposes. For e.g. Copper is used in making electric wires, gold is used to make jewellery, stainless steel is used to make pots, pans, etcMetals react with nonmetals to form ionic bonds. For e.g. Sodium Chloride (NaCl)Metals are a good conductor of electricity which means that they can conduct electricity due to the free moving electrons present in them. Copper is used as wiring as it is a good conductor of electricity.Metals have high melting points and high boiling points as they have strong metallic bonds.All metals are physically lustrous. They have a lustre that makes them shine. Gold is used for making jewellery.Metals are hard, they can’t be broken easily and require a lot of energy and strength to break.  Iron is used to make cars, buildings, ships, etc.Metals weigh a lot as they have a high density. Metals are heavy for their size.They don’t have flexibility and have tensile strength. Metals can’t be stretched.Metals are great conductors of heat. That’s why pots, pans, vessels are made of metals. Nonmetals have high ionization energies.They have high electronegativities.

Nonmetals are insulators which means that they’re poor conductors of electricity.They are dull, they do not have lustre like metals.Nonmetals are poor conductors of heat. They’re poor thermal conductors.They are very weak and brittle. They tend to easily break or shatter.Nonmetals have a low density. They’re light for their size.They aren’t good conductors of sound and do not make sounds when they are hit.They tend to gain electrons easily.Nonmetals maybe solid, liquids or gaseous.Nonmetals form acidic oxides.They’re good oxidizing agents.Generally, Nonmetals have four to eight electrons in the outer shell.