what is the meaning of helium, argon, krypton and xenon
Answers
Answer:
they are reacting gases
Explanation:
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These all are the name of gases found in air.
★Helium is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements.
★Argon is an inert, colorless and odorless element — one of the Noble gases. Used in fluorescent lights and in welding, this element gets its name from the Greek word for "lazy," an homage to how little it reacts to form compounds. The result is the isotope argon-36.
★Krypton is a chemical element with the symbol Kr and atomic number 36. It is a colorless, odorless, tasteless noble gas that occurs in trace amounts in the atmosphere and is often used with other rare gases in fluorescent lamps. With rare exceptions, krypton is chemically inert.
★Xenon is a very rare gas. This is a 5-cm vial of glowing ultrapure xenon. (Image: © Images of elements) Pronounced "ZEE-non," this element is a gas primarily used in light manufacturing. Xenon is one of the inert or noble gases and is odorless, colorless, tasteless and chemically non-reactive.