Which element has the largest atomic number in nature?

Uranium is the naturally occurring element with the highest atomic number, 92. It occurs in trace amounts in rocks, soil, and seawater, and its isotopes have played a major role in nuclear power and nuclear history. Elements above uranium in the periodic table, known as transuranium elements, are generally artificial and short-lived. Uranium was discovered in 1789 by Martin Heinrich Klaproth and named after the planet Uranus.