What is "noble gases"

Usage examples of "noble gases".

The atomic numbers of the five noble gases are: helium 2, neon 10, argon 18, krypton 36, and xenon 54.

Finally, he left clues that led directly to the discovery of the group of elements known as the noble gases, some of which are so elusive that the last of them wasn’.

Carbon-dioxide levels in the atmosphere were still at about 40 millibars of the 500 total at sea level, the rest consisting of 260 millibars nitrogen, 170 millibars oxygen, and 30 of miscellaneous noble gases.

Heat the atmosphere up first with a lot of noble gases, that kind of thing.

Atmospheric analysis shows an oxygen-nitrogen atmosphere, with somewhat higher concentrations of the noble gases and slightly less water vapor.

Liquified gas, generally nitrogen or one of the noble gases which would not themselves erode the metal, was therefore released into the bore after every shot.

If they're all like the one over Mars, they've got an atmosphere of xenon or one of the other noble gases.

The farm was interested only in the heavy elements, metals and rare earths and noble gases.