Atomic Number of Ytterbium
This page is the CodyCross answer for the clue below from Prehistory, Group 1260, Puzzle 3 (Rising Sea Levels).
Question is: Atomic Number of Ytterbium
and the answer is: SEVENTY
Word Meaning:
SEVENTY — The cardinal number occurring after sixty-nine and before seventy-one, represented in Roman numerals as LXX and in Arabic numerals as 70.
Definitions from Wiktionary.