neptunium
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.
Yes, nobelium is radioactive. It is a synthetic element that does not occur naturally and is produced in laboratory settings. All isotopes of nobelium are radioactive and have short half-lives, making them highly unstable.
Seaborgium (Sg) is a synthetic element with an atomic number of 106. It was first synthesized in 1974 by a research team led by Albert Ghiorso. Seaborgium is a highly radioactive element that does not exist in nature and has only been produced in nuclear reactors.
fermium
Plutonium is a synthetic element that is radioactive. It does not occur naturally in nature and must be artificially produced through the nuclear fission of uranium.
Darmstadtium is a synthetic radioactive element. It does not exist in nature.
Californium is an artificial radioactive chemical element.
Yes, nobelium is an artificial element and radioactive.
Rutherfordium is not found in nature. It is a radioactive synthetic element.
Meitnerium is a synthetic radioactive element. It is not found in nature.
Copernicium is a synthetic radioactive element. It does not exist in nature.
Nobelium is a radioactive, artificial chemical element.
Mendelevium is an artificial chemical element, radioactive, unstable.
Fermium is an artificial chemical element.
Bohrium is a synthetic radioactive element. It does not exist in nature.