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noble gas

noble gas

1 3.8
A gas that does not react with other chemicals, like helium or neon
  • noun
  • /ˈnoʊbəl ɡæs/
  • Specialized
translation icon : gas noble
  • Krypton is a type of noble gas that is commonly used in lighting applications.

But Mendeleev's table didn't include the group of elements we now call the noble gases, or even a gap for them.

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Examples

  • Since detection limits for all elements (with the exception of the hard-to-ionize noble gases) are around a few parts per billion, SIMS constitutes an extremely sensitive indicator of sample chemistry.

    Academic text (1998)
  • That substitution allows a higher pumping speed for pumping noble gases (mainly argon and helium).

    Academic text (2002)
  • These beings are very small, and each is composed of a single noble gas.

    Fiction book (2001)
  • Noble gases are chemically inert.

    Academic text (2013)
  • Measurements of noble gases in samples of surface material returned from the Moon suggest that the solar wind was roughly an order of magnitude larger over the past three billion years.

    Academic text (2006)
  • His work focuses on measuring noble gases in rocks, and that is precisely what he hopes to help the MSL team do on Mars.

    Blog text (25)
  • Dry basis: carbon dioxide twenty percent, nitrogen seventy-eight, remainder methane, traces of the noble gases.

    Fiction book (1999)
  • Now that the Finns have succeeded in making argon fluorohydride, there are only two of the noble gases left to crack: neon and helium.

    Fiction book (2001)
  • The triode model, different both electrically and physically from the others, allows high speed and stability when pumping getterable and noble gases, even at relatively high pressures.

    Academic text (2002)
  • Helium and neon are two of the most well-known noble gases that do not react with other elements.

Synonyms

neon
vsnoble gas
  • Specialized
79 3.4

A gas that makes bright red light in electric signs

is the broader category term not limited to members with glowing properties
helium
vsnoble gas
  • Specialized
70 3.3

A very light, colorless gas that people use to fill balloons and for science

is the general class term covering many such inert elements
argon
vsnoble gas
  • Specialized
12 5.7

A colorless, odorless gas in the air that does not react with other elements

is the general group name covering many chemically unreactive gases
inert gas
vsnoble gas
  • Specialized
3 4.0

A gas that does not react with other substances, like helium or argon

is the alternative common name for the same group of gases
He
vsnoble gas
  • Specialized
1 3.7

A very light colorless gas used to fill balloons and cool scientific equipment

is the broader term for the whole group rather than a single element

Surface Forms

noble gas singular
noble gases plural

Morphology

noble + gas

The element 'gas' is transparent, but the adjective 'noble' requires a specialized chemical sense (meaning chemically inert) that many B1 learners will not have; taken together the compound logically denotes an inert/unchanging gas, yet understanding this depends on domain knowledge of 'noble' in chemistry. Because the composition is interpretable if the chemical sense of 'noble' is known but not otherwise, the expression is partially but not fully predictable to a B1 learner.

Etymology

Noble gas may come from a simple picture: a noble person who keeps to themselves and does not mix with others, and the gases behave the same. So, noble gas means a gas that 'does not react' easily with other elements.