Which of the following statements concerning protium, deuterium and tr

1.	Which of the following statements concerning protium, deuterium and tritium is not true
A.	They are isotopes of each other
B.	They have similar electronic configurations
C.	They exist in the nature in the ratio of 1 : 2 : 3
D.	Their mass numbers are in the ratio of 1 : 2 : 3
Answer» D. Their mass numbers are in the ratio of 1 : 2 : 3

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Which of the following statements concerning protium, deuterium and tritium is not true

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