About

Darmstadtium is named after Darmstadt, Germany, the city where it was created at the GSI Helmholtz Centre for Heavy Ion Research. It is a synthetic, super-heavy element whose most stable isotope has a half-life of a few seconds. It is predicted to be a noble metal with properties similar to platinum, but its extreme instability and rarity prevent any practical use.

Atomic Properties

Atomic Number110

Atomic Weight281 u

Neutrons (common)171

Electron Configuration[Rn] 5f¹⁴ 6d⁹ 7s¹

Full Configuration1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 5f¹⁴ 6s² 6p⁶ 6d⁹ 7s¹

Electrons per Shell2, 8, 18, 32, 32, 17, 1

Oxidation States+8, +6, +4, +2, 0

Periodic Table Position

Group10

Period7

BlockD

Chemical SeriesTransition metals

Physical Properties

State at STPsolid

Appearancepredicted to be a silvery metal

Crystal Structurebcc

Magnetic Orderingparamagnetic

Discovery

Discovered byGesellschaft für Schwerionenforschung

Discovery Year1,994

Occurrencesynthetic

CAS Number54083-77-1

Electron Configuration

Energy

↿⇂

1s

↿⇂

2s

↿⇂

2p

↿⇂

3s

↿⇂

3p

↿⇂

4s

↿⇂

3d

↿⇂

4p

↿⇂

5s

↿⇂

4d

↿⇂

5p

↿⇂

6s

↿⇂

4f

↿⇂

5d

↿⇂

6p

↿

7s

↿⇂

5f

↿⇂

↿

6d

7p

Isotopes of Darmstadtium

Symbol ▲	Mass (u) ▲	Abundance ▲	Half-life ▲	Decay Mode ▲
²⁸¹Ds	281.164510	—	14 s	Spontaneous Fission, Alpha Decay