Yes, that's why they're artificial.
berkelium
An element is classified as a transuranium element if its atomic number is greater than 92, which is the atomic number of uranium. These elements are all synthetic and are typically produced in laboratories through nuclear reactions. They are highly unstable and have very short half-lives.
Synthetic elements are unstable chemical elements not naturally found on the earth. They are synthesized in the laboratory. All of them are unstable and radioactive in nature, which means they emit radiations and decay into other elements.
Berkelium
berkelium
The answer is Berkelium.
The element with chemical symbol Fm is Fermium. Fermium is a Actinide Transition Metal and has 100 electrons in total. It is synthesised and highly radioactive.
Curium is an artificial element.
The difference between naturally occuring and synthetic elements is that synthetic elements can't be found naturally - they can only be synthesised by man. Elements after no. 92 (Uranium) are all synthetic.
All the isotopes of uranium (natural or artificial) are radioactive and unstable.
Yes, neptunium is an artificial chemical element.
Technetium is an artificial chemical element.