helium
Nobelium is a man made chemical element.
Every element found on the Periodic Table can be found in a natural environment. None are man-made. Only compounds can be man-made.
It is synthetic; also known as "man-made".
No, Uranium is naturally occurring. But all elements beyond uranium are man-made.
Neodymium is a natural element and a rare-earth metal that can be found in the Earth's crust. It is not man-made.
its an element, so yes, any thing that's not manufactured by man is natural, therefore found in nature. It is not, however, found unless forced by man; so for most practical purposes it is not found in nature.
It is natural. It appears in soil, the ground, and in rocks and crystals such as petalite ore.
Every element found on the Periodic Table can be found in a natural environment. None are man-made. Only compounds can be man-made.
I believe it is Uranium. All elements heavier than uranium are man-made. Here's an interesting article... http://space.newscientist.com/article/dn13828-has-the-heaviest-element-been-found.html
Potassium is a naturally occurring element found in nature. It is not man-made. It is an essential mineral that plays a crucial role in various bodily functions.
it is fount in nature.
No, sulfur is a naturally occurring element found in the earth's crust. It is not man-made.