2006-11-07 02:46:21 · 4 answers · asked by corey h 1 in Science & Mathematics ➔ Chemistry
the isotopes of elements with atomic no. from 84 onwards are radio active. I think u r asking for uranium
2006-11-07 02:51:19 · answer #1 · answered by ADITYA V 3 · 0⤊ 0⤋
Uranium 235 or uranium 238 is the most likely answer
Uranium fact sheet here: http://www.ieer.org/fctsheet/uranium.html
238 is the more lethal with a 4.4 billion year half life!
2006-11-07 10:59:07 · answer #2 · answered by Mike C 2 · 0⤊ 0⤋
I'm thinking URANIUM..... but I'm no expert.
Of course, uranium enrichment projects are what our argument is with Iran right now, so this has been in the news.
Sue
2006-11-07 10:49:30 · answer #3 · answered by newbiegranny 5 · 0⤊ 0⤋
Either Uranium or Plutonium. But if I had to put money on it, I'd have to go with Uranium.
2006-11-07 10:56:51 · answer #4 · answered by Anonymous · 0⤊ 0⤋