Question

hydrogen of isotopes ​

Answer 1

H¹, H², H³ here is your answer

Answer 2

Hydrogen has three naturally occurring isotopes, sometimes denoted ¹H, ²H, and ³H. The first two of these are stable, while ³H has a half-life of 12.32 years. All heavier isotopes are synthetic and have a half-life less than one zeptosecond. Of these, ⁵H is the most stable, and ⁷H is the least.

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