Enter a clue or pattern or both:
The Clue
Its atomic number is 83 (7 letter answer)
The Answer
BISMUTH
Tags
Notes
The answer BISMUTH is so rare that it appears less than once every 2500 puzzles.
Related Clues
Metallic element
Definition
BISMUTH as a noun:
1. (bismuth, Bi, atomic number 83) = a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product from ores of other metals