Septquadennium (Sqe)

Septquadennium is the systematic name of the theoretical ٧٤٩. element in the periodic table with a symbol of Sqe and atomic number of 749. Septquadennium, also known as element 749, has سبعة مائة وتسعة وأربعون protons in its nucleus, and سبعة مائة وتسعة وأربعون electrons in its shells.