Crossword puzzle clue "unable to react as helium"

Here are the possible solutions for unable to react as helium clue

Answer
Clue
Relevancy
inert
Clue
Unable to react, as helium
Unable to react chemically
Unable to react, chemically
Unable to react
Definition
passive
amarillo
Clue
Helium Capital of the World
argon
Clue
Helium group gas
Definition
an inert gaseous element
atno
Clue
2, for helium: Abbr.
1 for hydrogen or 2 for helium: Abbr.

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