Question

which isotope of hydrogen is called protium​

Answer 1

Answer:

Properties of Isotopes of Hydrogen

Hydrogen has three naturally occurring isotopes: 1H (protium), 2H (deuterium), and 3H (tritium).

Answer 2

Hydrogen has three naturally occurring isotopes: 1H (protium), 2H (deuterium), and 3H (tritium). Other highly unstable nuclei (4H to 7H) have been synthesized in the laboratory, but do not occur in nature. The most stable radioisotope of hydrogen is tritium, with a half-life of 12.32 years. All heavier isotopes are synthetic and have a half-life less than a zeptosecond (10-21 sec). Of these, 5H is the most stable, and the least stable isotope is 7H .