Question

Write are noble metals and noble gases? Write their uses also.
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Answer 1

Answer:

The noble gases (historically also the inert gases; sometimes referred to as aerogens[1]) make up a class of chemical elements with similar properties; under standard conditions, they are all odorless, colorless, monatomic gases with very low chemical reactivity. The six naturally occurring noble gases are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn). Oganesson (Og) is variously predicted to be a noble gas as well or to break the trend due to relativistic effects; its chemistry has not yet been investigated.

Answer 2

Explanation:

NOBLE METALS -

A metal (e.g. gold, silver, or platinum) that resists chemical action, does not corrode, and is not easily attacked by acids.

ITS USES -

Noble metals used for dental castings continue to consist of alloys of gold, palladium, and silver (not a noble metal), with smaller amounts of iridium, ruthenium, and platinum. The majority are used as a backing for ceramic baking, with the rest used as inlays, onlays, and unveneered crowns.

NOBLE GASES -

Any of a group of gases that do not react with other chemicals.

ITS USES -

The noble gasses are used to create inert atmospheres, usual for arc welding, to protect materials, and to prevent chemical reactions. The elements are used in lamps, such as neon lights and headlamps with krypton, and lasers.