Ar
Part of speech: noun
Definition: The name of the letter R, r.
Argon
Part of speech: noun
Definition: a chemical element (symbol Ar) with an atomic number of 18.
Difference between Ar and Argon
What is the difference between Ar and Argon?
Ar as a noun is the name of the letter r, r. while Argon as a noun is a chemical element (symbol ar) with an atomic number of 18.
We hope you now know whether to use Ar or Argon in your sentence.