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The hydrogen isotope with one proton and two neutrons is:
ATritium
BProtium
CYttrium
DRhenium
Answer & Solution
Correct answer: A. Tritium
1. This isotope is found only in trace amounts on the earth.
2. The one possessing 1 proton and 2 neutrons is called tritium.
3. So the correct answer is tritium.
_Source: syllabus Chemistry, Ch 2 'Structure of Atom'_
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