Question

define what is noble gas​

Answer 1

Explanation:

any of the gaseous element helium, neon, argon krypton, xenon, and radon occuping group 18 of the periodic table are called noble gas

Answer 2

Noble gases are all odourless, colourless, monatomic gases with very low chemical reactivity. The six naturally occurring noble gases are helium, neon, argon, krypton, xenon, and the radioactive radon.