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The answer is Krypton.It comes from the Greek work kryptos (hidden)
Krypton.The name is derived from the Greek 'kryptos', meaninghidden
There is no element named sedium.
Krypton
Neon
xenon
No; quite the opposite, in fact. The "noble" or "inert" gasses were named that because. like "noble" people, they didn't interact with "ordinary" people.
No! oxygen does not react with a noble gas because a noble gas does not want any electrons. This means, it's outer shell or valence shell is filled with electrons.
No. Xenon is a noble gas, which means it does not react with anything.
Krypton is a word that means "hidden one". The word comes from the Greek tongue. This is because it was found as a boiling gas left from old parts of science.
No. Noble gasses are called noble, because they (usually) don`t bond with other elements. Helium is a noble gas, Neon, Argon , Krypton, too. Its actually a translation from the German word "Edelgas" which was first used to describe this kind of element and means ... well ... noble gas :-)
No, it is a noble gas