Periodic Table/Seaborgium
← DbBh →
106Sg271 Da

Seaborgium

Transition Metal·Period 7, Group 6·s-block

Half-life of 0.9 +/- 0.2 s. Discovered by the Joint Institute for Nuclear Research at Dubna (U.S.S.R.) in June of 1974. Its existence was confirmed by the Lawrence Berkeley Laboratory and Livermore National Laboratory in September of 1974.

Gallery

No Image Found

Chemical Elements A Virtual Museum under a Creative Commons Attribution 3.0 Unported License, source: https://images-of-elements.com/seaborgium.php

Bohr model of Seaborgium

Physical Propertiesmass · density · phase · crystal

Atomic Mass

271Da

Density

35g/cm³

Phase (STP)

Solid

Melting Point

—

Boiling Point

—

Molar Heat

—

Crystal Structure

—

Atomic Radiiatomic · covalent · van der Waals

Atomic (Empirical)

—

Covalent

143.00pm

Van der Waals

—

Electronic Propertieselectronegativity · ionization · affinity

Electron Configuration

[Rn] 5f14 6d4 7s2

Electron Shells

2, 8, 18, 32, 32, 12, 2

Electronegativity

—

Electron Affinity

—

1st Ionization Energy

7.8kJ/mol

Oxidation States

+6

Orbital DiagramAufbau · Hund's rule · Pauli exclusion

↑↓
1s2
↑↓
2s2
↑↓
↑↓
↑↓
2p6
↑↓
3s2
↑↓
↑↓
↑↓
3p6
↑↓
↑↓
↑↓
↑↓
↑↓
3d10
↑↓
4s2
↑↓
↑↓
↑↓
4p6
↑↓
↑↓
↑↓
↑↓
↑↓
4d10
↑↓
↑↓
↑↓
↑↓
↑↓
↑↓
↑↓
4f14
↑↓
5s2
↑↓
↑↓
↑↓
5p6
↑↓
↑↓
↑↓
↑↓
↑↓
5d10
↑↓
6s2
↑↓
↑↓
↑↓
6p6
↑↓
↑↓
↑↓
↑↓
↑↓
↑↓
↑↓
5f14
↑
↑
↑
↑
6d4
↑↓
7s2

Full: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 6s2 6p6 5f14 6d4 7s2Short: [Rn] 5f14 6d4 7s2

Ionization Energies (71 known)

1st7.8 kJ/mol2nd17.1 kJ/mol3rd25.8 kJ/mol4th35.5 kJ/mol5th47.2 kJ/mol6th59.3 kJ/mol7th109.0 kJ/mol8th122.0 kJ/mol9th152.0 kJ/mol10th170.0 kJ/mol11th200.0 kJ/mol12th224.0 kJ/mol13th251.0 kJ/mol14th285.0 kJ/mol15th306.0 kJ/mol16th339.0 kJ/mol17th885.0 kJ/mol18th921.0 kJ/mol19th958.0 kJ/mol20th998.0 kJ/mol21th1036.0 kJ/mol22th1073.0 kJ/mol23th1143.0 kJ/mol24th1181.0 kJ/mol25th1223.0 kJ/mol26th1263.0 kJ/mol27th4095.0 kJ/mol28th4178.0 kJ/mol29th4267.0 kJ/mol30th4360.0 kJ/mol31th4450.0 kJ/mol32th4540.0 kJ/mol33th4750.0 kJ/mol34th4840.0 kJ/mol35th4940.0 kJ/mol36th5030.0 kJ/mol37th5410.0 kJ/mol38th5490.0 kJ/mol39th5590.0 kJ/mol40th5680.0 kJ/mol41th6460.0 kJ/mol42th6570.0 kJ/mol43th6840.0 kJ/mol44th6950.0 kJ/mol45th10680.0 kJ/mol46th10870.0 kJ/mol47th11080.0 kJ/mol48th11300.0 kJ/mol49th11510.0 kJ/mol50th11710.0 kJ/mol51th12320.0 kJ/mol52th12540.0 kJ/mol53th12780.0 kJ/mol54th12990.0 kJ/mol55th13600.0 kJ/mol56th13800.0 kJ/mol57th14000.0 kJ/mol58th14200.0 kJ/mol59th16600.0 kJ/mol60th16800.0 kJ/mol61th17300.0 kJ/mol62th17500.0 kJ/mol63th34500.0 kJ/mol64th35000.0 kJ/mol65th35600.0 kJ/mol66th36100.0 kJ/mol67th44900.0 kJ/mol68th45700.0 kJ/mol69th46600.0 kJ/mol70th182833.0 kJ/mol71th185835.0 kJ/molSuccessive Ionization Energies

Abundanceby mass

Biological Role

No biological role

Synthetic, radioactive element. No biological role.

Discovery

Discovered By

Soviet Nuclear Research/ U. of Cal at Berkeley

Named By

—

Year

1974

Nuclear Data

Known Isotopes

16

Stable Isotopes

0

Stable Mass Numbers

None

Isotopes of Sg16 known

NuclideZNMass (AMU)Half-lifeDecayJπAbundance
258Sg106152258.1130402.70 msSF (1%), α0+—
259Sg106153259.114353402 msα (1%), SF, β⁺11/2-—
260Sg106154260.1143834.95 msSF (0.71%), α (0.29%)0+—
271Sg106165271.1337822.20 minα (0.42%), SF (0.58%)——
272Sg106166272.135825Unknownα, SF0+—
273Sg106167273.139475UnknownSF——

Click any isotope for its full page with decay chain:

258Sg259Sg260Sg261Sg262Sg263Sg264Sg265Sg266Sg267Sg268Sg269Sg270Sg271Sg272Sg273Sg
Wikipedia →Data: Bowserinator · IAEA NDS · mendeleev