39. Yttrium: It’s A Quiet Village

Welcome to the sleepy Swedish town of Ytterby. I hope you like it, because we’ll be spending an awful lot of time there later in the series.

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37. Rubidium: What’s Cooler Than Being Cool?

Rubidium is more explosive than the alkali metals above it on the table, but it’s much more interesting when it’s standing almost perfectly still.

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36. Krypton: It’s A Metric

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.

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