U-235 is an isotope of which element?
Correct answer: Uranium
Globular Martian
Strontium 90 is very close to Calcium in it's makeup and can be accepted by the body before it is recognised as intrusive. By that time, the damage is done.
less
A dead giveaway as starts with U, but I still used the 50 50.
Jenn Natalia
Hmm, do you think the "U" in the question represents URANIUM???🙄