Hexennennium

Hexennennium (Hee)

Hexennennium is the systematic name of the theoretical 699. element in the periodic table with a symbol of Hee and atomic number of 699. Hexennennium, also known as element 699, has שש מאות תשעים ותשע protons in its nucleus, and שש מאות תשעים ותשע electrons in its shells.
מספר אטומי699
סמל כימיHee
פרוטון699
אלקטרון699