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Tritium Is an Isotope of Hydrogen That Has Two Neutrons β\beta

Question 5

Multiple Choice

Tritium is an isotope of hydrogen that has two neutrons in addition to its proton. Tritium undergoes β\beta - decay with a half-life of 12.3 years. What percentage of an initially pure sample of tritium will remain undecayed after 35 years?


A) 2.9 %
B) 6.0 %
C) 7.0 %
D) 14 %
E) 19 %

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