Fluorine has 2 natural isotopes, 16 artificial isotopes and 1 artificial isomer.
No radioactive isotopes of fluorine are ordinarily found in nature. All elements have radioactive synthetic isotopes, however.
two that are known
one
All the actinides isotopes are radioactive; and the majority are artificial isotopes.
You add or remove one or more neutrons from each atom.
Rubidium has two natural isotopes (85Rb and 87Rb) and 30 artificial isotopes.
Dubnium is an artificial chemical element and hasn't stable isotopes.
All the isotopes of californium are radioactive, artificial and unstable.
Neon isotopes can be used in dating meteoric rock and to investigate the creation of some isotopes in space.
From looking at the chart of the nuclides, you can determine that Fluorine has a total of 13 isotopes (F-15 through F-27). Only one of Fluorine's isotopes is stable (F-19) and makes up 100% of the naturally occurring fluorine. The other 12 Fluorine isotopes are all radioactive and have half lives ranging from 5 x 10E-22 seconds (F-15) to 1.83 hours (F-18).
All isotopes and ions of fluorine have nine protons.
Uranium has 3 natural isotopes (234, 235, 238) and 26 artificial isotopes.All the isotopes of uranium are radioactive.