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Given the three naturally occurring isotopes of hydrogen (Protium, Deuterium, and Tritium), how manyHydrogen Chemistry Question

Question

Given the three naturally occurring isotopes of hydrogen (Protium, Deuterium, and Tritium), how many distinct homonuclear and heteronuclear diatomic molecules can theoretically exist in a highly energized plasma mixture of all three?

Answer: C

💡 Solution & Explanation

A diatomic molecule requires choosing 2 atoms from a pool of 3 distinct isotopes, with repetition allowed. The combinations are $H-H$, $D-D$, $T-T$ (homonuclear) and $H-D$, $H-T$, $D-T$ (heteronuclear), giving exactly 6 possible distinct diatomic molecules.

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