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Naturally occurring uranium contains ---...

Naturally occurring uranium contains ------- isotopes

A

three

B

four

C

two

D

five

Text Solution

Verified by Experts

The correct Answer is:
A
Three isotopes `99.3%`, `238_(U)`, `0.7%` `235_(U)`, and traces of `234_(U)`. The isotope `235_(U)` is fissile i.e. if it is irradiated with thermal (slow) neutrons the nucleus breaks up into two smaller nuclei.
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