Element Ytterbium

Ytterbium ElementIt is the fourteenth and penultimate element in the lanthanide series, which is the basis of the relative stability of its +2 oxidation state
Ytterbium is a chemical element with the symbol Yb and atomic number 70.
Ytterbium is a soft, malleable and ductile chemical element that displays a bright silvery luster when pure.
It is a rare earth element, and it is readily dissolved by the strong mineral acids. It reacts slowly with cold water and it oxidizes slowly in air

Names and Identifiers

Chemical Formula:Yb
Molecular Weight:173.040g/mol
EC Number :231-173-2
MDL Number:MFCD00011286
Other Names:Itterbio, Itérbio, Yterbio
PubChem CID:23992
IUPAC Name:Ytterbium
Canonical SMILES:[Yb]
ICSC Number:n/a

Physical & Chemical Properties

Density:6.90 g/cm³
Boiling Point:1469 K ​(1196 °C, ​2185 °F)
Melting Point:1097 K ​(824 °C, ​1515 °F)
Molecular Formula:Yb
Flash Point:n/a
Exact Mass:173.938904
Symbol:Globally Harmonized System of ClassificationGlobally Harmonized System of Classification
Signal Word:Danger
Hazard Statements:H228-H302 + H312 + H332-H315-H319-H335
Precautionary Statements:P210-P261-P280-P305 + P351 + P338
Hazard Codes:F:Highlyflammable;
Risk Phrases:R36/37/38
Safety Phrases:S36-S33-S16-S26
RIDADR:UN 3089 4.1/PG 2
WGK Germany:3
Packaging Group:I
Hazard Class:4.2

Ytterbium has seven stable isotopes and two of them are used for medical and industrial purposes.

Naturally occurring isotopes

IsotopeMass/DaNatural abundance (atom %)Nuclear spin (I)Magnetic moment (μ/μN)
168Yb167.933894 (5)0.13 (1)0
170Yb169.934759 (4)3.04 (15)0
171Yb170.936323 (3)14.28 (57)1/20.4919
172Yb171.936378 (3)21.83 (67)0
173Yb172.938208 (3)16.13 (27)5/2-0.6776
174Yb173.938859 (3)31.83 (92)0
176Yb175.942564 (4)12.76 (41)0

Radiosotope data

IsotopeMass/DaHalf-lifeMode of decayNuclear spinNuclear magnetic moment
166Yb165.9338752.363 dEC to 166Tm0
167Yb166.93494717.5 mEC to 167Tm5/20.62
169Yb168.93518732.03 dEC to 169Tm7/2-0.63
175Yb174.9412734.19 dβ to 175Lu7/20.6
177Yb176.9452571.9 hβ to 177Lu9/2

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