What Four Elements Make Up Almost 90% of the Earth?
- Iron. The vast majority of the Earth's supply of iron is found in the core and the mantle.
- Oxygen. Oxygen, the second most abundant element on Earth, is found mainly in the crust.
- A Matter of Definition.
Then, what are most of the naturally occurring elements?
Naturally-Occurring Elements. Oddly enough, the exact number of naturally-occurring elements is uncertain. Uranium (atomic number=92) is the element with the highest atomic number found in significant quantities on earth or elsewhere.
What is the heaviest element in the universe?
When a heavier element is discovered (e.g., element 120), then that will become the new heaviest element. Ununoctium is the heaviest element, but it is man-made. The heaviest naturally-occurring element is Uranium (atomic number 92, atomic weight 238.0289).
What is the heaviest naturally occurring metal on earth?
I assume by "heaviest," you mean "densest;" in that case, the densest chemical element is osmium (which is a metal). Osmium has a density of around 22 grams per cubic centimeter, about twice the density of lead! Answer 3: The heaviest naturally occurring element is plutonium measured by the mass of the element.