Biquadennium (Bqe)

Biquadennium is the systematic name of the theoretical 249. element in the periodic table with a symbol of Bqe and atomic number of 249. Biquadennium, also known as element 249, has διακόσια σαράντα εννέα protons in its nucleus, and διακόσια σαράντα εννέα electrons in its shells.