|Name in Saurian|| Rehdaim (Rd)|
|Systematic name|| Unhexoctium (Uho)|
|Location on the periodic table|
|Above element||Flerovium (114Fl)|
|Previous element||Kirchoffium (167Kf)|
|Next element||Joulium (169Ju)|
|Family||Carbon family (Crystallogens)|
|494.1047 u, 820.4801 yg|
|Atomic radius||156 pm, 1.56 Å|
|Van der Waals radius||201 pm, 2.01 Å|
|s||490 (168 p+, 322 n0)|
|Electron configuration|| [Gb] 9s2 9p2|
2, 8, 18, 32, 50, 32, 18, 4, 4
|Oxidation states|| 0, +2, +4, +6|
|First ionization energy||720.5 kJ/mol, 7.467 eV|
|Electron affinity||187.0 kJ/mol, 1.938 eV|
|Covalent radius||154 pm, 1.54 Å|
|Molar mass||494.105 g/mol|
|Molar volume||25.727 cm3/mol|
|Atomic number density|| 1.22 × 1021 g−1|
2.34 × 1022 cm−3
|Average atomic separation||350 pm, 3.50 Å|
|Crystal structure||Centered tetragonal|
|Melting point|| 308.02 K, 554.44°R|
|Boiling point|| 500.91 K, 901.63°R|
|Liquid range||192.89 , 347.19|
|Triple point|| 308.01 K, 554.42°R|
@ 46.311 mPa, 3.4736 × 10−4 torr
|Critical point|| 943.53 K, 1698.36°R|
@ 9.5152 MPa, 93.908 atm
|Heat of fusion||4.191 kJ/mol|
|Heat of vaporization||38.766 kJ/mol|
|Heat capacity|| 0.04731 J/(g• ), 0.08516 J/(g• )|
23.375 J/(mol• ), 42.076 J/(mol• )
|Universe (by mass)|| Relative: 3.77 × 10−43|
Absolute: 1.26 × 1010 kg
Bornium is the fabricated name of a hypothetical element with the symbol Bn and atomic number 168. Bornium was named in honor of Max Born (1882–1970), who developed quantum mechanics and made contributions to solid-state physics and optics. This element is known in the scientific literature as unhexoctium (Uho), dvi-lead, or simply element 168. Bornium is the heaviest crystallogen and is the second member of the kirchoffide series, placing this element at 9p2 coordinate on the periodic table.
Bornium is a soft, brittle gray poor metal with density very similar to gold (19.2 vs. 19.3 g/cm3). The sound travels through this element in thin rod at 8545 m/s, five times faster than through gold. The atoms are separated by an average of 3.50 Å. In the solid state, atoms arrange to form centered tetragonal lattices.
Like flerovium, element right above bornium on the periodic table, it has low melting and boiling points due to the closing of 9p1/2 suborbital. Bornium melts at 35°C (95°F), which is the temperature of a hot summer day. Since it is so close to the human body temperature of 37°C (98.6°F), the metal may not melt readily in the hand unlike couple other elements gallium and cesium because the temperature of the hand is most often cooler than the core temperature by about couple degrees. So the melting point of this metal is about the temperature of the one's hand. Its boiling point is 228°C (442°F), low enough for broiler to boil liquid bornium. These corresponds that its liquid range is 193°C (347°F) and its liquid ratio of 1.63. Of the three elements whose melting points is between the room temperature (25°C, 77°F) and human body temperature, bornium has the lowest liquid ratio and narrowest liquid range.
If it wasn't for relativistic effects, bornium would be at the 8p6 coordinate, makng it a noble gas. However, relativistic effects make that coordinate not exist.
Bornium has completed the 9p1/2 suborbital with two electrons right after completing the 9s orbital with two. It filled four consecutive electrons in the outermost shell in two orbitals for the first time since also filling four consecutive in two orbitals from sodium to silicon. In all, the electron notation is 168-9-26.
Bornium, like every other element heavier than lead, has no stable isotopes. The most stable isotope is 490Bn with a half-life of 12.5 milliseconds. It undergoes spontaneous fission, splitting into three lighter nuclei plus neutrons like the example.
As it is typical of elements in this region of the periodic table of atomic numbers, some meta states are more stable than any isotopes. The most stable meta state is 493mBn with a half-life of 5.8 minutes. Other meta states include 494mBn (t½ = 6.7 seconds), 489mBn (t½ = 380 milliseconds), 492mBn (t½ = 143 milliseconds), and 487mBn (t½ = 68 milliseconds).
Bornium would behave like lighter cogener flerovium is that it is chemically inactive due to the completion of the 9p1/2 suborbital. So both bornium and flerovium deviate greatly from every lighter crystallogens. +4 returns as common oxidation state, because the outermost shell has four electrons, doubling all other family members, and all can participate in bonding.
Bornium reacts most vigorously with halogens such as fluorine and chlorine, as well as oxygen and sulfur. The fluorides are BnF2, BnF4, and BnF6; the chlorides are BnCl2, BnCl4, and BnCl6; the oxides are BnO, BnO2, and Bn2O3; the sulfides are BnS, BnS2, and Bn2S3. Bornium can form intercrystallogens such as BnC and BnSi, which are gray refractive solids with high melting points of 3305°C (5980°F) and 3472°C (6282°F), respectively.
Bornium can form organic compounds known as organobornium. Examples are tetrafluoromethylbornium (Bn(CF3)4), bornium tetracyclopentadienyl (BnC5H5), tetramethylbornium (Bn(CH3)4), and tetraethylbornium ((C2H5)4Bn).
Occurrence and synthesis Edit
It is almost certain that bornium doesn't exist on Earth at all, but it is believe to exist somewhere in the universe, at least barely. Since every element heavier than lithium were produced by stars, then bornium must be produced in stars, and then thrown out into space by exploding stars. But it is theoretically impossible for even the most powerful supernovae or most violent neutron star collisions to produce this element through r-process because there's not enough energy available or not enough neutrons, respectively, to produce this hyperheavy element. Instead, this element virtually can only be made by advanced technological civilizations. An estimated abundance of bornium in the universe by mass is 3.77 × 10−43, which amounts to 1.26 × 1010 kilograms or twice the Great Pyramid of Giza worth of bornium in mass.
To go along with other such civilizations, humans on Earth may eventually have the capability to synthesize bornium. To synthesize most stable isotopes of bornium, nuclei of a couple lighter elements must be fused together, and right amount of neutrons must be seeded. This operation would be extremely difficult since it requires a vast amount of energy and even if nuclei of this element were produced would immediately decay due to its brief half-life. Here's couple of example equations in the production of the most stable isotope, 490Bn.