Element 106
Seaborgium
Transition metals
Seaborgium (Sg) is in the d-block of the periodic table — group 6, period 7.
Seaborgium is a synthetic element with symbol Sg and atomic number 106.
Key data
- Atomic number
- 106
- Atomic mass
- 269.000 u
- Group / Period
- 6 / 7
- Block
- d-block
- Phase at STP
- Solid
- Density
- 35 g/cm³
- Melting point
- —
- Boiling point
- —
- Electron configuration
- *[Rn] 5f14 6d4 7s2
Periodic table block
Seaborgium is in the d-block (group 6, period 7). Elements land in the d-block when their highest-energy electrons fill a d subshell — these are the transition metals in the middle of the table.
New to this? Periodic table blocks explained: s, p, d, and f
Common uses
- •Research only
- •Named after Glenn Seaborg
- •Synthesized 1974
Discovery
Year: 1974
Discovered by: Lawrence Berkeley National Laboratory
Frequently asked questions
What is the atomic number of Seaborgium?
Seaborgium has atomic number 106. Its symbol is Sg and its atomic mass is 269 u.
What category of element is Seaborgium?
Seaborgium is classified as transition metals. It sits in group 6, period 7 of the periodic table.
What block of the periodic table is Seaborgium in?
Seaborgium is in the d-block (group 6, period 7). Its highest-energy electrons occupy the d subshell — you can see this in its electron configuration, *[Rn] 5f14 6d4 7s2.
What is Seaborgium used for?
Common uses of Seaborgium include: Research only, Named after Glenn Seaborg, Synthesized 1974.
When was Seaborgium discovered?
Seaborgium was discovered in 1974 by Lawrence Berkeley National Laboratory.
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