It is man made
No, Uranium is naturally occurring. But all elements beyond uranium are man-made.
It is natural. It appears in soil, the ground, and in rocks and crystals such as petalite ore.
Neodymium is a natural element and a rare-earth metal that can be found in the Earth's crust. It is not man-made.
Bromine is a natural element that is found in the Earth's crust and in seawater. It can also be produced as a byproduct of industrial processes.
Californium is a man-made element that does not occur naturally. It was first synthesized in a laboratory in 1950 by bombarding curium with alpha particles. It is a radioactive element with various applications in nuclear reactors and neutron sources.
Mendelevium is a man made chemical element.
It is a natural element.
Selenium is a natural element.
No it is not.
Lanthanum is a natural element.
Actinium is a natural chemical element, it is not a man-made element.
Argon is a natural element found in the air.
No, it is a natural element
No, Uranium is naturally occurring. But all elements beyond uranium are man-made.
A natural element exist in the nature independent on human activity; a man made element is obtained only in laboratories by processesdeveloped by men.
Seaborgium is a man made chemical element.
Berkelium is an artificial element.