Darmstadtium

Darmstadtium (Ds)

Atomic Number110
Atomic Weight281
Mass Number267
Group10
Period7
Blockd
Protons110 p+
Neutrons157 n0
Electrons110 e-
Electron shell 110 Darmstadtium.svg Animated Bohr Model of Ds (Darmstadtium) Enhanced Bohr Model of Ds (Darmstadtium) Bohr Model: Ds (Darmstadtium) Orbital Diagram of Ds (Darmstadtium)

Properties

Atomic Radius
Molar Volume
Covalent Radius
128 pm
Metallic Radius
Ionic Radius
Crystal Radius
Van der Waals Radius
Density
34.8 g/cm³
Energy
Proton Affinity
Electron Affinity
Ionization Energy
Heat of Vaporization
Heat of Fusion
Heat of Formation
Electrons
Electron Shells2, 8, 18, 32, 32, 16, 2
Valence Electrons0
Electron Configuration[Rn] 5f14 6d8 7s2
Oxidation States
Electronegativity
Electrophilicity
Phases
Phase
Gas Phase
Boiling Point
Melting Point
Critical Pressure
Critical Temperature
Triple Point
Visual
Color
Colorless
Appearance
Refractive Index
Thermodynamic Properties
Thermal Conductivity
Thermal Expansion
Molar Heat Capacity
Specific Heat Capacity
Heat Capacity Ratio (Adiabatic Index)
Electrical Properties
Type
Electrical Conductivity
Electrical Resistivity
Superconducting Point
Magnetism
Type
Magnetic Susceptibility (Mass)
Magnetic Susceptibility (Molar)
Magnetic Susceptibility (Volume)
Magnetic Ordering
Curie Point
Neel Point
Structure
Crystal Structure ()
Lattice Constant
Lattice Angles
Mechanical Properties
Hardness
Bulk Modulus
Shear Modulus
Young Modulus
Poisson Ratio
Speed of Sound
Classification
CategoryTransition metals, Transition metals
CAS GroupVIIIA
IUPAC GroupVIII
Glawe Number
Mendeleev Number70
Pettifor Number
Geochemical Class
Goldschmidt Classsynthetic
Other
Gas Basicity
Dipole Polarizability
32 ± 3 a₀
C6 Dispersion Coefficient
Allotropes
Neutron Cross Section
Neutron Mass Absorption
Quantum Numbers3D3
Space Group ()

Isotopes of Darmstadtium

Stable Isotopes0
Unstable Isotopes18
Radioactive Isotopes18

267Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
267.143726 ± 0.000219 Da
Mass Number267
G-Factor
Half Life
10 ± 8 us
Spin3/2
Quadrupole Moment
Discovery Year1995
Parity+

267Ds Decay Modes
Decay ModeIntensity
α (α emission)100%

268Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
268.143477 ± 0.000324 Da
Mass Number268
G-Factor
0
Half Life
Spin0
Quadrupole Moment
0
Discovery Year
Parity+

268Ds Decay Modes
Decay ModeIntensity
α (α emission)%

269Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
269.144750965 ± 0.000033712 Da
Mass Number269
G-Factor
Half Life
230 ± 110 us
Spin
Quadrupole Moment
Discovery Year1995
Parity

269Ds Decay Modes
Decay ModeIntensity
α (α emission)100%

270Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
270.14458662 ± 0.000042163 Da
Mass Number270
G-Factor
0
Half Life
205 ± 48 us
Spin0
Quadrupole Moment
0
Discovery Year2001
Parity+

270Ds Decay Modes
Decay ModeIntensity
α (α emission)100%
SF (spontaneous fission)%

271Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
271.145951 ± 0.000104 Da
Mass Number271
G-Factor
Half Life
144 ± 53 ms
Spin
Quadrupole Moment
Discovery Year1998
Parity

271Ds Decay Modes
Decay ModeIntensity
SF (spontaneous fission)75%
α (α emission)25%

272Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
272.146091 ± 0.000456 Da
Mass Number272
G-Factor
0
Half Life
Spin0
Quadrupole Moment
0
Discovery Year
Parity+

272Ds Decay Modes
Decay ModeIntensity
SF (spontaneous fission)%

273Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
273.148455 ± 0.000152 Da
Mass Number273
G-Factor
Half Life
240 ± 100 us
Spin
Quadrupole Moment
Discovery Year1996
Parity

273Ds Decay Modes
Decay ModeIntensity
α (α emission)100%

274Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
274.149434 ± 0.000418 Da
Mass Number274
G-Factor
0
Half Life
Spin0
Quadrupole Moment
0
Discovery Year
Parity+

274Ds Decay Modes
Decay ModeIntensity
α (α emission)%
SF (spontaneous fission)%

275Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
275.152085 ± 0.000366 Da
Mass Number275
G-Factor
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

275Ds Decay Modes
Decay ModeIntensity
α (α emission)%
SF (spontaneous fission)%

276Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
276.153022 ± 0.000588 Da
Mass Number276
G-Factor
0
Half Life
Spin0
Quadrupole Moment
0
Discovery Year
Parity+

276Ds Decay Modes
Decay ModeIntensity
α (α emission)%
SF (spontaneous fission)%

277Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
277.155763 ± 0.000421 Da
Mass Number277
G-Factor
Half Life
6 ± 3 ms
Spin
Quadrupole Moment
Discovery Year2010
Parity

277Ds Decay Modes
Decay ModeIntensity
α (α emission)100%
SF (spontaneous fission)%

278Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
278.157007 ± 0.000548 Da
Mass Number278
G-Factor
0
Half Life
Spin0
Quadrupole Moment
0
Discovery Year
Parity+

278Ds Decay Modes
Decay ModeIntensity
α (α emission)%
SF (spontaneous fission)%

279Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
279.159984 ± 0.000649 Da
Mass Number279
G-Factor
Half Life
210 ± 40 ms
Spin
Quadrupole Moment
Discovery Year2004
Parity

279Ds Decay Modes
Decay ModeIntensity
SF (spontaneous fission)88%
α (α emission)12%

280Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
280.161375 ± 0.000803 Da
Mass Number280
G-Factor
0
Half Life
25 ± 20 ms
Spin0
Quadrupole Moment
0
Discovery Year1999
Parity+

280Ds Decay Modes
Decay ModeIntensity
SF (spontaneous fission)100%

281Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
281.164545 ± 0.000529 Da
Mass Number281
G-Factor
Half Life
14 ± 3 s
Spin
Quadrupole Moment
Discovery Year2004
Parity

281Ds Decay Modes
Decay ModeIntensity
SF (spontaneous fission)90%
α (α emission)10%

282Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
282.166174 ± 0.000322 Da
Mass Number282
G-Factor
0
Half Life
4.2 ± 3.3 m
Spin0
Quadrupole Moment
0
Discovery Year2016
Parity+

282Ds Decay Modes
Decay ModeIntensity
α (α emission)100%
SF (spontaneous fission)%

283Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
283.169437 ± 0.000537 Da
Mass Number283
G-Factor
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

283Ds Decay Modes
Decay ModeIntensity
α (α emission)%
SF (spontaneous fission)%

284Ds

AbundanceRadioactive ☢️
Relative Atomic Mass
284.171187 ± 0.000537 Da
Mass Number284
G-Factor
0
Half Life
Spin0
Quadrupole Moment
0
Discovery Year
Parity+

284Ds Decay Modes
Decay ModeIntensity
α (α emission)%
SF (spontaneous fission)%

History

Darmstadtium was first created in 1994, at the Institute for Heavy Ion Research (Gesellschaft für Schwerionenforschung) in Darmstadt, Germany, by Peter Armbruster and Gottfried Münzenberg, under the direction of Sigurd Hofmann. The team bombarded a lead-208 target with accelerated nuclei of nickel-62 and detected a single atom of the isotope darmstadtium-269. Named after the German city of Darmstadt

DiscoverersHeavy Ion Research Laboratory (HIRL)
Discovery LocationGermany
Discovery Year1994
Etymology (Name Origin)Named after the city of Darmstadt, Germany where GSI Helmholtz Centre for Heavy Ion Research is located.
Pronunciationoon-nun-NIL-i-em (English)
Darmstadtium is harmful due to its radioactivity
Darmstadtium has no stable or naturally-occurring isotopes

Uses

Darmstadtium is used for scientific research purposes only. It has no significant commercial applications.

Sources

Made by bombarding bismuth-209 with cobolt-59.

Abundance
Abundance in Earth's crust
Abundance in Oceans
Abundance in Human Body
0 %
Abundance in Meteor
0 %
Abundance in Sun
0 %
Abundance in Universe
0 %

Nuclear Screening Constants