 |
noble gas
| English Wikipedia - The Free Encyclopedia | Download this dictionary |
Noble gas
The noble gases make a group of chemical elements with similar properties. Under standard conditions, they are all odorless, colorless, monatomic gases with very low chemical reactivity. The six noble gases that occur naturally are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn). Ununoctium (Uuo), which was recognised as an element in December 2015, is predicted to be a noble gas as well but this fact is not confirmed.
| See more at Wikipedia.org... |
© This article uses material from Wikipedia® and is licensed under the GNU Free Documentation License and under the Creative Commons Attribution-ShareAlike License
| WordNet 2.0 | Download this dictionary |
noble gas
Noun
1. any of the chemically inert gaseous elements of the helium group in the periodic table
(synonym) inert gas, argonon
(hypernym) chemical element, element
(hyponym) argon, Ar, atomic number 18
| Babylon English-Czech | Download this dictionary |
noble gas
n.
netečný plyn
| NRC Nuclear Energy Glossary | Download this dictionary |
Noble gas
A gaseous chemical element that does not readily enter into chemical combination with other elements. An inert gas. Examples are helium, argon, krypton, xenon, and radon.
A service to the public by The U.S. Nuclear Regulatory Commission (NRC).
