4 ms·
Yeah, I imagine that it'd be hard to get ahold of some technetium or astatine
by science4sail 5y ago
Yeah, I imagine that it'd be hard to get ahold of some technetium or astatine
- falcrist 5y agoFrancium is the one I always think about. My understanding is the only source is as a decay product (probably from uranium) and that there's somewhere on the order of one ounce of it in the entire planet at any given time. Not only that, but it's only true francium if it comes from France.