selenium80
Selenium80 refers to a specific isotope of the element selenium. Isotopes are atoms of the same element that have a different number of neutrons in their nucleus. Selenium (symbol Se) has an atomic number of 34, meaning all selenium atoms have 34 protons. Selenium80, denoted as 80Se, has 34 protons and 46 neutrons (34 protons + 46 neutrons = 80 mass number).
80Se is the most abundant naturally occurring isotope of selenium, making up approximately 49.7% of all selenium