3
Hydrogen has 1 unstable isotope, and 2 stable isotopes.
Hydrogen-1 and hydrogen-2 isotopes are radioactively stable.
Hydrogen-1 and hydrogen-2 isotopes are radioactively stable.
Hydrogen has three stable isotopes: protium (1H), deuterium (2H), and tritium (3H). Among these, protium is the most abundant, making up over 99.98% of naturally occurring hydrogen.
hydrogen
The lightest element on the periodic table with no stable isotopes is hydrogen. It only has one proton in its nucleus and no stable isotopes.
Technetium (Tc) is the element that has no stable isotopes. All of its isotopes are radioactive with half-lives ranging from minutes to millions of years.
The isotopes protium (H-1) and deuterium (H-2) are stable; tritium (H-3) and artificial isotopes are unstable.
A stable hydrogen atom consists of one proton and one electron, and since hydrogen has only one proton, there is essentially only one type of neutral hydrogen atom. However, hydrogen does have isotopes—protium (1 proton), deuterium (1 proton and 1 neutron), and tritium (1 proton and 2 neutrons)—but these isotopes differ in their nuclear composition. Therefore, while you can have different isotopes of hydrogen, the fundamental neutral hydrogen atom remains the same. Thus, you can build one type of uncharged stable hydrogen atom, which is protium, but there are two isotopes (deuterium and tritium) that are also stable in their own right.
copper has 2 stable isotopes
No, there are many stable isotopes.
It has 10