Collecting elements can be risky business. Tellurium is one of those elements that poses a dire threat — not to one’s health, but to the element collector’s reputation in polite society.
It’s only after we gave up searching for this element that we found it out in the universe.
Like argon, today’s noble gas coincidentally features prominently in science fiction — albeit in name only. But krypton also takes a place in the science factual story of international weights and measures.
Silicon gets all the press, but germanium was the real trailblazer of the Information Age.