Question

Can anyone tell me
What is protium?

Answer 1

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

Answer 2

hello mate

here is your answer

it's a chemistry question

the common, stable isotope of hydrogen, as distinct from deuterium and tritium.

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.