DARMSTADTIUM (Ds) • Element 110 • Physical Properties/Chemical Properties • Description • Uses/Function • Isotopes • Thermochemistry • Reactions • Electron Configuration and Bonding • Video

DARMSTADTIUM

Our primary support comes from users like you. You or your business can sponsor this page.

Introduction

table | top

Atomic Number:	110	Group:	10 or VIII B	110	281
Atomic Weight:	281	Period:	7	Ds
		CAS Number:	54083-77-1	Ds
				DARMSTADTIUM

Classification

table | top

Description

table | top

In 1987 Oganessian, et al., at Dubna, claimed discovery of this element. Their experiments indicated the spontaneous fissioning nuclide Element 110-272 with a half-life of 10 ms. More recently a group led by Armbruster at G.S.I. in Darmstadt, Germany, reported evidence of Element 110-269, which was produced by bombarding lead for many days with more than 10^18 nickel atoms. A detector searched each collision for Element 110’s distinct decay sequence. On November 9, 1994, evidence of 110 was detected. Berkeley scientists, in 1991, performed similar experiments and reported evidence of 110, but this was not confirmed. Workers at Dubna have experiments underway to produce Element 110-273 by bombarding plutonium with sulfur atoms. Other experiments at G.S.I. are now searching for heavier isotopes. Several years ago the IUPAC suggested the use of the temporary name ununnilium for Element 110 when it was found. ¹

Uses/Function

table | top

Physical Properties

table | top

Density:

g/cm³

* - at 1 atm

Electron Configuration and Bonding

table | top

Electron Configuration:	[Rn] 7s² 5f¹⁴ 6d⁸				Lewis Dot Diagram
						x
Block:	d					Ds	x
Highest Occupied Energy Level:	7					Ds
Valence Electrons:	2
Quantum Numbers:	n = 6	ℓ = 2	m_ℓ = 0	m_s = -½

The information in this section can be derived from the periodic table. Lewis dot diagrams and valence electrons are not useful for transition metals, lanthanides, and actinides. Only the valence electrons are shown for these elements. Quantum numbers are given for the final electron.

Thermochemistry

table | top

Isotopes

table | top

Nuclide	Mass ²	Half-Life ²	Nuclear Spin ²	Binding Energy
²⁶⁷Ds	267.14434(39)#	3(+6-2) µs	9/2+#	1,903.16 MeV
²⁶⁸Ds	268.14380(54)#	100# µs	0+	1,911.24 MeV
²⁶⁹Ds	269.14512(15)#	230(110) µs [179(+245-66) µs]	3/2+#	1,919.32 MeV
²⁷⁰Ds	270.14472(31)#	160(100) µs [0.10(+14-4) ms]	0+	1,927.40 MeV
²⁷¹Ds	271.14606(11)#	210(170) ms	11/2-#	1,935.47 MeV
²⁷²Ds	272.14632(70)#	1# s	0+	1,943.55 MeV
²⁷³Ds	273.14886(14)#	0.17(+17-6) ms	13/2-#	1,951.63 MeV
²⁷⁴Ds	274.14949(53)#	2# s	0+	1,959.71 MeV
²⁷⁵Ds	275.15218(48)#	2# s		1,958.47 MeV
²⁷⁶Ds	276.15303(65)#	5# s	0+	1,966.55 MeV
²⁷⁷Ds	277.15565(104)#	5# s	11/2+#	1,974.63 MeV
²⁷⁸Ds	278.15647(73)#	10# s	0+	1,982.71 MeV
²⁷⁹Ds	279.15886(80)#	0.18(+5-3) s		1,990.79 MeV
²⁸⁰Ds	280.15980(91)#	11(6) s	0+	1,998.87 MeV
²⁸¹Ds	281.16206(78)#	9.6 s	3/2+#	1,997.63 MeV
Values marked # are not purely derived from experimental data, but at least partly from systematic trends. Spins with weak assignment arguments are enclosed in parentheses. ²

Reactions

table | top

Abundance

table | top

Compounds

table | top

Material Safety Data Sheet

table | top

ACI Alloys, Inc.

Languages

table | top

Afrikaans:		Albanian:		Armenian:	Arabic:	دارمشتاتيوم
Aromanian:		Basque:		Bosnian:	Breton:
Bulgarian:		Belarusian:		Catalan :	Chinese :	鐽
Cornish :		Croatian :		Czech :	Danish:
Dutch:		Esperanto:		Estonian:	Faroese:
Finnish:		French:		Friulan:	Frisian:
Galician:		Georgian:		German:	Greek:
Hebrew:		Hungarian:		Icelandic:	Irish Gaelic:
Italian:		Japanese:	ダームスタチウム	Kashubian:	Kazakh:
Korean:		Latvian:	Darmštatijs	Lithuanian:	Luxembourgish:
Macedonian:		Malay:		Maltese :	Manx Gaelic:
Moksha:		Mongolian:		Norwegian:	Occitan:
Ossetian:		Polish:		Portuguese:	Russian:
Scottish Gaelic:		Serbian:		Slovak:	Spanish:	Darmstadtio
Sudovian:		Swahili:		Swedish:	Tajik:
Thai:	ดาร์มลตัดเชียม	Turkish:		Ukranian:	Uzbek:
Vietnamese:		Welsh:

For More Information

table | top

Sources

table | top

(1) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; p 4:11.

(2) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; pp 6:123-6:137.

(3) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; pp 6:107-6:122.

(4) - Atomic Mass Data Center. http://amdc.in2p3.fr/web/nubase_en.html (accessed July 14, 2009).

Comments

table | top

DARMSTADTIUM

Periodic Table

Metal	Nonmetal	Metalloid
Alkali Metal	Alkali Earth Metal	Transition Metal	Chalcogen	Halogen
Noble Gas	Lanthanoid	Actinoid	Rare Earth Metal	Platinum Group Metal
Transuranium	No Stable Isotopes
Solid	Liquid	Gas	Solid (Predicted)

External Links:
About.com	American Elements
Chemical & Engineering News	Chemical Elements
ChemGlobe	Chemicool
Environmental Chemistry	Eni Generalic
HyperPhysics from Georgia State University's Department of Physics and Astronomy	InfoPlease
Lenntech	Los Alamos National Laboratory
Physics Department of the University of Coimbra	Qivx Inc.
Royal Society of Chemistry's Visual Elements	Schenectady County Community College
Thomas Jefferson Lab National Accelerator Facility	WebElements
Wikipedia	X-ray properties: Carlo Segre from Illinois Institute of Technology

Would you like to add a comment to this page?

Name:	Email:	Location:

Your comment must be approved before it appears on the page.