Symbol: Uus

Atomic Number: 117

Atomic Weight: (294)

Ununseptium - Uus has an atomic number of 117. Ununseptium is a temporary name. This is a super heavy element with an atomic weight of 294. It is also known as eka-astatine and element 117. Ununseptium is called element 117 because it has 117 protons and 117 electrons. Elements with such a high number of protons are not found free in nature. The heaviest element that occurs in nature has 92 protons (uranium). Heavier elements are made in research settings by using nuclear reactions to add more protons. Elements with more protons are generally unstable and decay quickly. Given that...Read More