'Hydrogen has 3 isotopes:  protium, tritium & this one with a mass number of 2'
Deuterium
GENERAL SCIENCE: Hydrogen has 3 isotopes:  protium, tritium & this one with a mass number of 2
Hydrogen has 3 isotopes:  protium, tritium & this one with a mass number of 2
Hydrogen has 3 isotopes:  protium, tritium & this one with a mass number of 2
GENERAL SCIENCE
Deuterium
GENERAL SCIENCE