Are you a QOTWer? Do you want to start a thread that isn't a direct answer to the current QOTW? Then this place, gentle poster, is your friend.
(, Sun 1 Apr 2001, 1:00)
« Go Back | See The Full Thread
All the noble gases (Helium, neon argon, krypton, xenon, radon) have radioactive isotopes. In fact, all of radon's isotopes are radioactive.
(, Mon 18 Aug 2008, 14:54, Reply)
« Go Back | See The Full Thread