Septpenttrium (Spt)
Septpenttrium is the systematic name of the theoretical ที่ 753 element in the periodic table with a symbol of Spt and atomic number of 753. Septpenttrium, also known as element 753, has เจ็ดร้อยห้าสิบสาม protons in its nucleus, and เจ็ดร้อยห้าสิบสาม electrons in its shells.