Hexhexpentium (Hhp)

Hexhexpentium is the systematic name of the theoretical 665. element in the periodic table with a symbol of Hhp and atomic number of 665. Hexhexpentium, also known as element 665, has šesť­sto šesťdesiat­päť protons in its nucleus, and šesť­sto šesťdesiat­päť electrons in its shells.