Bisepttrium (Bst)

Bisepttrium is the systematic name of the theoretical 273. element in the periodic table with a symbol of Bst and atomic number of 273. Bisepttrium, also known as element 273, has מאתיים שבעים ושלוש protons in its nucleus, and מאתיים שבעים ושלוש electrons in its shells.