Pentunseptium (Pus)

Pentunseptium is the systematic name of the theoretical 517. element in the periodic table with a symbol of Pus and atomic number of 517. Pentunseptium, also known as element 517, has հինգ­հարյուր տասն­յոթ protons in its nucleus, and հինգ­հարյուր տասն­յոթ electrons in its shells.