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Element: Darmstadtium

This element has only been produced a few atoms at a time, so most of its properties have never been measured - missing values are omitted.

General data

Element nameDarmstadtium
Chemical symbolDs
Atomic number Z110
Year discovered1994
Standard state (25°C)Expected to be a solid
CategoryTransition metal
Blockd
Atomic mass[282]

Physical properties

none - only single atoms have been produced

Energy properties

none - only single atoms have been produced

Atomic structure

Protons110 (Atomic number)
Neutrons (Ds-282, longest-lived isotope)172
Electrons110
Electron configuration[Rn] 7s² 5f¹⁴ 6d⁸ (predicted)
Oxidation states+8, +6, +4, +2, 0

Ionization energies - NIST ASD (68 states)

StateChargeIoniz. energy (eV)Type
Ds VI5+65 ± 2calculated
Ds IX8+112.9 ± 2.2calculated
Ds X9+128 ± 2.2calculated
Ds XI10+216 ± 2.4calculated
Ds XII11+231 ± 2.5calculated
Ds XIII12+266 ± 3calculated
Ds XIV13+288 ± 3calculated
Ds XV14+322 ± 3calculated
Ds XVI15+352 ± 3calculated
Ds XVII16+380 ± 3calculated
Ds XVIII17+422 ± 3calculated
Ds XIX18+442 ± 3calculated
Ds XX19+483 ± 4calculated
Ds XXXIII32+1087 ± 4calculated
Ds XXXIV33+1125 ± 5calculated
Ds XXXV34+1165 ± 5calculated
Ds XXXVI35+1208 ± 5calculated
Ds XXXVII36+1250 ± 5calculated
Ds XXXVIII37+1290 ± 4calculated
Ds XXXIX38+1369 ± 4calculated
Ds XL39+1412 ± 4calculated
Ds XLI40+1457 ± 4calculated
Ds XLII41+1500 ± 4calculated
Ds LXV64+4590 ± 24calculated
Ds LXVI65+4680 ± 30calculated
Ds LXVII66+4770 ± 40calculated
Ds LXVIII67+4870 ± 40calculated
Ds LXIX68+4960 ± 50calculated
Ds LXX69+5060 ± 50calculated
Ds LXXI70+5300 ± 60calculated
Ds LXXII71+5400 ± 60calculated
Ds LXXIII72+5500 ± 70calculated
Ds LXXIV73+5600 ± 90calculated
Ds LXXV74+5990 ± 90calculated
Ds LXXVI75+6080 ± 100calculated
Ds LXXVII76+6190 ± 110calculated
Ds LXXVIII77+6280 ± 120calculated
Ds LXXIX78+7230 ± 120calculated
Ds LXXX79+7350 ± 140calculated
Ds LXXXI80+7640 ± 150calculated
Ds LXXXII81+7750 ± 160calculated
Ds LXXXIII82+11730 ± 170calculated
Ds LXXXIV83+11930 ± 190calculated
Ds LXXXV84+12140 ± 200calculated
Ds LXXXVI85+12380 ± 220calculated
Ds LXXXVII86+12600 ± 240calculated
Ds LXXXVIII87+12810 ± 250calculated
Ds LXXXIX88+13500 ± 300calculated
Ds XC89+13700 ± 300calculated
Ds XCI90+14000 ± 300calculated
Ds XCII91+14200 ± 300calculated
Ds XCIII92+14800 ± 400calculated
Ds XCIV93+15000 ± 400calculated
Ds XCV94+15300 ± 400calculated
Ds XCVI95+15500 ± 400calculated
Ds XCVII96+18400 ± 400calculated
Ds XCVIII97+18600 ± 400calculated
Ds XCIX98+19100 ± 500calculated
Ds C99+19400 ± 500calculated
Ds CI100+37400 ± 500calculated
Ds CII101+37900 ± 500calculated
Ds CIII102+38500 ± 500calculated
Ds CIV103+39100 ± 500calculated
Ds CV104+49800 ± 600calculated
Ds CVI105+50700 ± 600calculated
Ds CVII106+51600 ± 600calculated
Ds CIX108+201112 ± 15calculated
Ds CX109+204394 ± 16calculated

Value type as given by NIST ASD: measured - from evaluated experimental data; calculated - from ab initio calculations (mostly highly ionised atoms that have not been measured; for the simplest ones, e.g. H I, the calculation is more accurate than measurement); semi-empirical - from interpolation, extrapolation or another semi-empirical method.

NIST gives no energy for some ionization stages - hence the gaps in numbering.

Photos

none - only single atoms have been produced

Isotopes (10)

ANHalf-lifeDecay
Ds-2671573 μsα
Ds-269159180 μsα
Ds-2701600.19 msα
Ds-2711611.6 msα
Ds-273163190 μsα
Ds-2771673.5 msα
Ds-279169220 msSF
Ds-2801700.4 msSF
Ds-28117112 sSF
Ds-2821721 minα

Data sources

More about the data sources