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That depends on the temperature, of course. At "room temperature", it's a solid.

It's also incredibly radioactive and produces heat at a rate of about a kilowatt per gram. Not that anyone's ever actually seen a gram of it; only about a milligram of it is produced per year all over the world, and its most stable isotope (that we know of) has a half-life of about 18 months, so it's not like you could save up the production from several years and combine it.

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11y ago

What else can I help you with?