argon (element 18, Ar) · · · argon (element 18, Ar) · · Code (Short Name / Abbr) argon (element 18, Ar) · · Long Name 2 · · Number of Characters Definition · · Property Characters · 氩 cjk unified ideograph | argon (element 18, Ar) U+6C29 氬 cjk unified ideograph | argon (element 18, Ar) U+6C2C