In my vocabulary crossword puzzle, I have one clue answer left to fill in the puzzle, but the clue doesn't match anything that even EXISTS:

9. A group 18 element (on the periodic table)

Answer so far: N??E?????S

NONE of the group 18 elements fit in here, though. And I triple-checked my other clue answers because they were in the exact glossary for the chapter, except for this clue and a few others.

Does anyone have any idea what could go in this answer space?? Any help is GREATLY appreciated!!

1 answer

Group 18 is He, Ne, Ar, Kr, Xe, Rn
Helium
Neon
Argon
Krypton
Xenon
Radon
With so few to choose from I suggest some of your other words may be incorrect.