no... omg
Yes, uranium is a natural but radioactive element.
Dear florine is natural non metal element, it is very reactive ,so it not exist as free element , it is the first member of halogen group in periodic table. it has special chemical and physical properties , the most is poisinous.
Carbon is non-radioactive excepting the isotope carbon-14.
14 atoms of carbon.
The element is carbon and the isotope is 6C14
Thorium is a natural chemical element, a radioactive metal.
The element with 6 protons and 8 neutrons is carbon-14, which is a radioactive isotope of carbon.
Radiocarbon is another name for carbon 14, which is a weakly radioactive isotope of the element carbon.
Carbon-14
When a radioactive element decays, it releases energy in the form of radiation (such as alpha or beta particles). The decay changes the element into a different element or isotope, which may also be radioactive. This process continues until a stable non-radioactive element is formed.
Francium is a radioacive chemical element; francium is natural but also may be prepared in laboratory.
Astatine is a radioactive, natural element and also a nonmetal similar to halogens.