Chemical Element Number Four

This page is the CodyCross answer for the clue below from All Things Water, Group 1286, Puzzle 1 (Moon Jellyfish).

Question is: Chemical Element Number Four

and the answer is: BERYLLIUM

Word Meaning:

BERYLLIUM — (uncountable) The chemical element (symbol Be) with an atomic number of 4; a soft silvery-white low density alkaline earth metal with specialist industrial applications.

Definitions from Wiktionary.