Physics · Composition and size of nucleus, atomic masses, mass-energy relation, mass defect

Which of the following is an isotope of hydrogen?

Which of the following is an isotope of hydrogen?

  • A. Deuterium
  • B. Trinium
  • C. Promium
  • D. All of the above

Step-by-step solution

Hydrogen has three isotopes: protium (¹H), deuterium (²H), and tritium (³H). Among the given options, deuterium is a well-known isotope. Trinium is not a standard name (likely a misspelling of tritium, but not exactly), and promium is not an isotope of hydrogen. Therefore, only deuterium is clearly correct. Option D (all of the above) is incorrect because promium is not an isotope.
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