Periodic Table 
| Seaborgium | Symbol | Sg | | Atomic Number | 106 | Relative Atomic Mass
12C = 12.0000 | [ 271 ]
271.1335 | | Significant Atomic Mass | 271
Neutrons 165 | | Atomic Radius pm | 132 (est.) | First Ionisation Energy
kJ mol -1 | 730 (est.) | | Electronegativity | - | | Density kg m -3 | 35000 (est.) | | Molar Volume cm 3 | - | Thermal Conductivity
W m -1 K -1 | - | | Melting Point K | - | | Boiling Point K | - | | Number of Isotopes | 9 |  | 258 Sg 2.9 ms
259 Sg 0.48 s
260 Sg 3.6 ms
261 Sg 0.23 s
262 Sg 6.9 ms
263 Sg 0.3 s
265 Sg 7.1 s
266 Sg 34 s
271 Sg 1.9 min / 21 s
| | Inner/outer Shells | | | Inner/outer Orbitals | | | Filling Orbital | | | Ground State Electron Configuration | | | Ground State Electron Configuration with
free Orbitals (n= 12) |  | | Ground State Electron Configuration with compressed Orbitals (n= 162 ) |  | | | Singularity | | | | s | p | d | f | g | h | i | j | 1 | 2 | | | | | | | | 2 | 2 | 6 | | | | | | | 3 | 2 | 6 | 10 | | | | | | 4 | 2 | 6 | 10 | 14 | | | | | | 5 | 2 | 6 | 10 | 14 | 18 | | | | | 6 | 2 | 6 | 4 | 6 | 14 | 18 | 22 | | | | 7 | 2 | 6 | 10 | 14 | 18 | 22 | 26 | | 8 | | | | | | | | |
| | | | Term Symbol | 5D 0 | | CAS Reg-ID: | 54038-81-2 | 
| Discovered by a Berkeley group of scientists under direction of Ghiorso in 1974. ( Super-HILAC)
The American name "seaborgium" was objectable to some because Glenn T. Seaborg (1912-1999) was still alive.
This was objected to by the American Chemical Society on the grounds that the discovery of 106 was not in question and that group should have the right to name the element whatever it wanted to.
|
188O + 24998Cf → 263106Sg + 4 1n
|  | The Dubna Team, directed by Flerov and Organessian, from the Soviet Joint Institute for Nuclear Research produced heavy ions in 1974. 280 MeV Chromium ions from the 310 cm cyclotron were used to strike targets of 207Pb and 208Pb. |
5424Cr + 20782Pb → 259106Sg + 2 1n
|
In 1994, the IUPAC proposed " rutherfordium "
Finally in 1997, the name was agreed to seaborgium
| | Obsolete Names | Unnilhexium, Unh
eka-wolfram, eka-tungsten
rutherfordium
| | Name derived from | Named after G.T. Seaborg
(b. April 19, 1912, Ishpeming, Mich., U.S. / d. Feb. 25, 1999, Lafayette, Calif. )
| GLENN THEODORE SEABORG
American nuclear chemist best known for his work on isolating and identifying elements heavier than uranium. He was awarded the 1951 Nobel Prize for Chemistry (with Edwin Mattison McMillan). Seaborg was educated at the University of California at Los Angeles (A.B., 1934) and the University of California at Berkeley (Ph.D., 1937). At Berkeley he was successively research associate, instructor, and assistant professor (1937-45), becoming professor of chemistry in 1946. He served as Berkeley's chancellor in 1958-61.
With his coworkers, Seaborg added (1940-55) ten new elements encompassing atomic numbers 94-102 and 106, of which plutonium (94) is the best known because of its use as a nuclear explosive and for nuclear power. During World War II, which he spent as a section chief at the University of Chicago Metallurgical Laboratory, the first industrial production of plutonium was undertaken in newly devised uranium reactors, and Seaborg had the primary responsibility for isolating plutonium from the reaction products.
The other new elements were: americium (95), curium (96), berkelium (97), californium (98), einsteinium (99), fermium (100), mendelevium (101), nobelium (102), and seaborgium (106). The prediction of the chemical properties and placement of these and many heavier elements in the periodic table of the elements was helped greatly by an important organizing principle enunciated by Seaborg in 1944 and known as the actinide concept. According to this concept, the 14 elements heavier than actinium belong in a separate group in the periodic table.
Seaborg was chairman of the Atomic Energy Commission from 1961 to 1971, and the American nuclear-power industry developed rapidly during that time. Seaborg returned to the University of California at Berkeley in 1971. http://www-ia1.lbl.gov/Seaborg/ 
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