Penthexunium

Penthexunium (Phu)

Penthexunium is the systematic name of the theoretical 561st element in the periodic table with a symbol of Phu and atomic number of 561. Penthexunium, also known as element 561, has five hundred sixty-one protons in its nucleus, and five hundred sixty-one electrons in its shells.
Atomic Number561
SymbolPhu
Protons561
Electrons561