Isotopes of Hydrogen, Protium, Deuterium and Tritium are the three naturally occurring isotopes of the chemical element hydrogen, differ in number of protons and atomic weight, chemistry Longsleeve T-shirt #723274480
If you need a timeless long-sleeved t-shirt, this soft long-sleeved crew shirt is the one for you. It has a 100% combed ringspun cotton, 32 singles thread weight, 4.3 oz. fabric weight, a set-in 1x1 baby rib collar and a tear away label.