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Which of the following is Radioactive?

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in Chemistry – Class 11 by (148k points)
Which of the following is Radioactive?

(a) protium

(b) tritium

(c) chlorine

(d) deuterium

The question was posed to me by my school principal while I was bunking the class.

I would like to ask this question from Dihydrogen & H2 in section Hydrogen of Chemistry – Class 11

1 Answer

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Best answer
Correct answer is (a) protium

To explain: Among the three isotopes of Hydrogen; protium, deuterium and tritium, a radioactive isotope is tritium and it emits beta rays and its half-life is 12.33 year. The other two isotopes protium deuterium are non Radioactive.

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