Thulium Company Profile

Aggregated data from the web about Thulium

Company Name	Thulium
Website	https://en.wikipedia.org
Snippet	Thulium is a chemical element with the symbol Tm and atomic number 69. It is the thirteenth and third-last element in the lanthanide series. Like the other lanthanides, the most common oxidation state is +3, seen in its oxide, halides and other compounds; because it occurs so late in the series, however, the +2 oxidation state is also stabilized by the nearly full 4f shell that results.
167Tm	syn
168Tm	syn
169Tm	100%
170Tm	syn
171Tm	syn
Block	f-block
Group	group n/a
Naming	after Thule, a mythical region in Scandinavia
P (Pa)	Vapor pressureP (Pa)1101001 k10 k100 kat T (K)1117123513811570(1821)(2217)
Period	period 6
Country	poland
Founded	2006.0
Website	thulium.pl
Industry	telecommunications
at T (K)	1117
linkedin	linkedin.com/company/thulium
Isotope	IsotopeAbundanceHalf-life (t1/2)Decay modeProduct167Tmsyn9.25 dε167Er168Tmsyn93.1 dε168Er169Tm100%stable170Tmsyn128.6 dβ−170Yb171Tmsyn1.92 yβ−171Yb
Appearance	silvery gray
CAS Number	7440-30-4
size_range	11 - 50
display_url	thulium.pl
Bulk modulus	44.5 GPa
Headquarters	kraków, lesser poland voivodeship, poland
Phase at STP	solid
Atomic radius	empirical: 176 pm
Boiling point	2223 K (1950 °C, 3542 °F)
Melting point	1818 K (1545 °C, 2813 °F)
Poisson ratio	0.213
Pronunciation	/ˈθjuːliəm/ (THEW-lee-əm)
Shear modulus	30.5 GPa
Heat of fusion	16.84 kJ/mol
Covalent radius	190±10 pm
Young's modulus	74.0 GPa
Brinell hardness	470–900 MPa
Element category	Lanthanide
Oxidation states	+2, +3 (a basic oxide)
Vickers hardness	470–650 MPa
Atomic number (Z)	69
Crystal structure	hexagonal close-packed (hcp)
Electronegativity	Pauling scale: 1.25
Magnetic ordering	paramagnetic (at 300 K)
Thermal expansion	poly: 13.3 µm/(m·K) (at r.t.)
Natural occurrence	primordial
Density (near r.t.)	9.32 g/cm3
Electrons per shell	2, 8, 18, 31, 8, 2
Ionization energies	1st: 596.7 kJ/mol, 2nd: 1160 kJ/mol, 3rd: 2285 kJ/mol,
Molar heat capacity	27.03 J/(mol·K)
Number of employees	12
Heat of vaporization	191 kJ/mol
Thermal conductivity	16.9 W/(m·K)
when liquid (at m.p.)	8.56 g/cm3
Electrical resistivity	poly: 676 nΩ·m (at r.t.)
Electron configuration	[Xe] 4f13 6s2
Magnetic susceptibility	+25,500·10−6 cm3/mol (291 K)[2]
Discovery and first isolation	Per Teodor Cleve (1879)
Standard atomic weight.mw-parser-output .nobold{font-weight:normal} Ar, std(Tm)	168.934218(6)[1]

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