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10203040506070809010011000.511.522.53‌ Å

70 - Ytterbium lanthanide

Atomic Mass (u)

173.05

Density (g/cm³)

6.9

Phase

Solid

Year of Discovery

1878
YtterbiumYbElectron 1Electron 2Electron 1Electron 2Electron 3Electron 4Electron 5Electron 6Electron 7Electron 8Electron 1Electron 2Electron 3Electron 4Electron 5Electron 6Electron 7Electron 8Electron 9Electron 10Electron 11Electron 12Electron 13Electron 14Electron 15Electron 16Electron 17Electron 18Electron 1Electron 2Electron 3Electron 4Electron 5Electron 6Electron 7Electron 8Electron 9Electron 10Electron 11Electron 12Electron 13Electron 14Electron 15Electron 16Electron 17Electron 18Electron 19Electron 20Electron 21Electron 22Electron 23Electron 24Electron 25Electron 26Electron 27Electron 28Electron 29Electron 30Electron 31Electron 32Electron 1Electron 2Electron 3Electron 4Electron 5Electron 6Electron 7Electron 8Electron 1Electron 2

Ytterbium is a chemical element with symbol Yb and atomic number 70. It is the fourteenth and penultimate element in the lanthanide series, which is the basis of the relative stability of its +2 oxidation state. However, like the other lanthanides, its most common oxidation state is +3, seen in its oxide, halides and other compounds.

70 Atomic Number
173.05  u Atomic Mass
1097.15  K Melting Point
1469  K Boiling Point
6.9  g/cm³ Density
2.4  Å Atomic Radius
1.87  Å Covalent Radius
1.1 Electronegativity
6.25  eV First Ionization Energy
-1.93 Electron Affinity
6 Number of Shells
2, 8, 18, 32, 8, 2 Electron Shell Occupations
0.15  J/g Specific Heat