Unbitrium

Unbitrium (pronounced /uːnˈbaɪtriəm/), also known as eka-protactinium or element 123, is the possible chemical element in the periodic table that has the temporary symbol Ubt and has the atomic number 123. Calculations have shown that ³²⁶Ubt would be the most stable isotope. The closed neutron shells say that ³⁰⁷Ubt and ³¹⁹Ubt would be the most stable isotopes.

Unbitrium,  ₁₂₃Ubt

General properties
Unbitrium in the periodic table
Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson Template:Periodic table (32 columns, micro)/119+ - ↑ Ubt ↓ Uss unbibium ← unbitrium → unbiquadium
Atomic number (Z)	123
Group	unknown group
Period	period 8
Block	g-block
Element category	superactinide
Electrons per shell	2, 8, 18, 32, 35, 18, 8, 2 (predicted)
Physical properties
Phase at STP	Ubt:
Atomic properties
Oxidation states	(+5) (predicted)
Other properties
Natural occurrence	Ubt:
Main isotopes of unbitrium
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct 350Ubt syn 2hrs

As of February 2021, no attempt has ever been made to make element 123.

Naming

The name unbitrium is a systematic element name, used as a placeholder until it is confirmed by other research groups and the IUPAC decides on a name. Usually, the name suggested by the discoverer(s) is chosen.

Synthesis

This reaction would create ³⁰⁷Ubt, which is expected to be relatively stable.

262
103Lr + 48
20Ca → 307
123Ubt + 3 n

Fictional reference to element 123

In the fictional universe of Star Trek: The Next Generation, this element was seemingly discovered and named. The episode "Rascals" depicted a "trans-periodic table," in a schoolroom set, which depicted element number 123 as being named jamesium, symbol Rj, having an atomic weight of 326. The graphic was created by set artists, probably a homage to designer Richard D. James, and listed this element in the fictional "gamma series."

In the third episode of season one of the television series Agents of S.H.I.E.L.D. element 123 is depicted 24 minutes in as the element Gravitonium, atomic weight 308

Unbitrium 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 (---).

Related pages

• unbibium – unbiquadium

Other websites

• WebElements.com - Unbitrium
• Likely propeties of Unbitrium Archived 2016-03-04 at the Wayback Machine