Pentnilhexium (Pnh)
Pentnilhexium is the systematic name of the theoretical 506. element in the periodic table with a symbol of Pnh and atomic number of 506. Pentnilhexium, also known as element 506, has հինգհարյուր վեց protons in its nucleus, and հինգհարյուր վեց electrons in its shells.