Ytterbium

Ytterbium ( /ɨˈtɜrbiəm/ i-TUR-bee-əm) is a chemical element with the symbol Yb and atomic number 70. It is the the fourteenth and penultimate element in the lanthanide series, or last element in the f-block, which is the basis of the relative stability of the +2 oxidation state. However, like the other lanthanides, the most common oxidation state is +3, seen in its oxide, halides and other compounds. In an aqueous solution, like compounds of othe... More

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Chemical Element

The 70th Element in the Periodic Table

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Thulium

Thulium ( /ˈθjuːliəm/ THEW-lee-əm) is a chemical element that has the symbol Tm and atomic number 69. Thulium is the second least abundant of the...

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Lutetium

Lutetium ( /lʲuːˈtiːʃiəm/ lew-TEE-shee-əm) is a chemical element with the symbol Lu and atomic number 71. It is the last element in the lanthanide...

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Symbol:

  • Yb

Atomic mass:

Mass Uncertainty
  • 173.04 u (2.8734E-16 µg )
  • 0.03 u (5E-20 µg )

Electrons per shell:

  • 2,8,18,32,8,2

Electron affinity:

  • 0.5 eV (5E-7 MeV )

Atomic radius:

  • 1 pm (3.9E-8 )

Van der Waals radius:

  • 228 pm (0.00000898 )

Melting Point:

  • 818.85 °C (1505.9 °F )

Boiling Point:

  • 1,195.85 °C (2184.55 °F )

Ionization Energy:

  • 6.2542 eV (0.0000062542 MeV )

Discovery Date:

  • 1878

Electron Configuration:

  • Xe 4f14 6s2
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