Unseptbium
Unseptbium is a hypothetical chemical element with atomic number 172. Based on the trends of the periodic table, it would likely be a noble gas. It has the symbol Usb.
Related pages
Unseptbium Media
Pekka Pyykkö's 172-element (extended) periodic table.
Kulsha's first suggested form
Kulsha's second suggested form
Energy eigenvalues (in eV) for the outermost electrons of elements with Z = 100 through 172, predicted using Dirac–Fock calculations. The − and + signs refer to orbitals with decreased or increased azimuthal quantum number from spin–orbit splitting respectively: p− is p1/2, p+ is p3/2, d− is d3/2, d+ is d5/2, f− is f5/2, f+ is f7/2, g− is g7/2, and g+ is g9/2.
Energy eigenvalues for the 1s, 2s, 2p1/2 and 2p3/2 shells from solutions of the Dirac equation (taking into account the finite size of the nucleus) for Z = 135–175 (–·–), for the Thomas-Fermi potential (—) and for Z = 160–170 with the self-consistent potential (---)
