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Praxis II: Chemistry Exam Prep

Category - Chemistry

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What element has isotopes known as deuterium and tritium?

Bromine
Helium
Oxygen
Hydrogen
Chlorine

Explanation

Answer: Hydrogen

Hydrogen has isotopes known as deuterium and tritium. Protium, most common isotope of hydrogen, has one proton and no neutrons. Deuterium has one proton and one neutron, while tritium has one proton and two neutrons.

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