All transuranic elements are synthetic and radioactive.
neptunium
Aluminium is an element, it is not synthetic.
Synthetic elements are usually radioactive, but not necessarily so. It is conceivable for a non-radioactive neutral atom to be produced by a nuclear spallation reaction.
No radioactive isotopes of fluorine are ordinarily found in nature. All elements have radioactive synthetic isotopes, however.
All isotopes of technetium are radioactive. Technetium is found only in trace quantities in nature, and then usually only in certain ores where it is a product of radioactive decay. All of the technetium used is synthetic.
No isotope of silver ordinarily found in nature is radioactive. Like all elements, silver has synthetic radioactive isotopes.Silver is not radio active, none of silver's isotopes have radio activity.ur welcome!
fermium
neptunium
Yes, nobelium is an artificial element and radioactive.
Rutherfordium is not found in nature. It is a radioactive synthetic element.
Bohrium is a synthetic radioactive element. It does not exist in nature.
Copernicium is a synthetic radioactive element. It does not exist in nature.
Californium is an artificial radioactive chemical element.
Darmstadtium is a synthetic radioactive element. It does not exist in nature.
Meitnerium is a synthetic radioactive element. It is not found in nature.
Nobelium is a radioactive, artificial chemical element.
Mendelevium is an artificial chemical element, radioactive, unstable.
an element made of nickel and lead Darmstadium is a radioactive synthetic element.