Nobelium

Nobelium (symbol No) is a chemical element, atomic number 102 on the periodic table.

Characteristics and history
Nobelium, in its most stable form, has an atomic mass of 255. Nobelium was discovered by Humans on Earth's European continent for the first time by scientists working in Sweden in the year 1957. This element is part of the actinide series of heavy elements, and was named for Alfred Nobel.