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Which of the following is NOT an isotope of hydrogen?

  1. A
    Lithium
  2. B
    Tritium
  3. C
    Protium
  4. D
    None

Solution & Step-by-step Explanation

Hydrogen has three naturally occurring isotopes: Protium (
1
H), Deuterium (
2
H), and Tritium (
3
H). Lithium (Li) is a distinct chemical element with an atomic number of 3, not an isotope of hydrogen.

Practice this question

Try it yourself before checking the explanation above.

Which of the following is NOT an isotope of hydrogen?
A
Lithium
B
Tritium
C
Protium
D
None

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Atomic StructureHydrogen IsotopesPeriodic Table

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