Yttrium

Yttrium (pronounced /ˈɪtriəm/ IT-ree-əm) is a chemical element with symbol Y and atomic number 39. It is a silvery-metallic transition metal chemically similar to the lanthanoids and has historically been classified as a rare earth element. Yttrium is almost always found combined with the lanthanoids in rare earth minerals and is never found in nature as a free element. Its only stable isotope, Y, is also its only naturally occurring isotope. In ... more

Chemical Element

The 39th Element in the Periodic Table

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Strontium

Strontium (pronounced /ˈstrɒnʃiəm/ STRON-shee-əm, /ˈstrɒntiəm/ STRON-tee-əm, or /ˈstrɒnʃəm/ STRON-shəm) is a chemical element with the symbol Sr and...

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Zirconium

Zirconium (pronounced /zərˈkoʊniəm/ zər-KOH-nee-əm) is a chemical element with the symbol Zr and atomic number 40. It is a lustrous, gray-white,...

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Symbol:

  • Y

Atomic mass:

Mass Uncertainty
  • 88.90585 u (1.476316E-16 µg )
  • 0.00002 u (3.3211E-23 µg )

Electrons per shell:

  • 2,8,18,9,2

Electron affinity:

Value Uncertainty
  • 0.307 eV (3.07E-7 MeV )
  • 0.012 eV (1.2E-8 MeV )

Electronegativity (Pauling scale):

  • 1.22

Atomic radius:

  • 180 pm (0.00000709 )

Covalent radius:

  • 1.62 pm (6.38E-8 )

Van der Waals radius:

  • 240 pm (0.00000945 )

Melting Point:

  • 1,521.85 °C (2771.36 °F )

Boiling Point:

  • 3,337.85 °C (6040.19 °F )

Periodic table block:

Ionization Energy:

  • 6.2173 eV (0.0000062173 MeV )

Discovery Date:

  • 1794

Discovering Country:

Electron Configuration:

  • Kr 4d1 5s2

Discoverer:

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