Period 1
    Period 2
    Period 3
    Period 4
    Period 5
    Period 6
    The S Orbital
    The P Orbital
    The D Orbital
    The F Orbital
    Transition Elements
    Lanthanide Series
    Actinide Series
    Multivalence1
    Multivalence2

    Rota Period
    I II III IV V VI VII VIII
    1+

    2+

    3+

    4+

    5+

    6+

    7+

    8+

    3-

    2-

    1-

    0

    H He
    Li Be B C N O F Ne
    Na Mg Al Si P S Cl Ar
    K Ca Sc Ti V Cr Mn
    * * * Fe
    Co
    Ni
    Cu
    Zn Ga Ge As Se Br Kr
    Rb Sr Y Zr Nb Mo Tc Ru
    Rh
    Pd
    Ag
    Cd In Sn Sb Te I Xe
    Cs Ba La Ce
    Pr
    Nd
    Pm
    Sm
    Eu
    Gd
    Tb
    Dy
    Ho
    Er
    Tm
    Yb
    Lu Hf Ta W Re Os
    Ir
    Pt
    Au
    Hg Tl Pb Bi Po At Rn
    Fr Ra Ac Th Pa U
    Np
    Pu
    Am
    Cm Bk
    Cf
    Es
    Fm
    Md
    No
    Lr Rf Db


    The Shovel
    About the Rota Period
    Rota Period Explained (pdf)
    Rota Period Abstract Published in JSE (pdf)
    Atomic Radius, Electronegativity, Electropositivity, First Ionization Energy, Mass + Z, Metallic Properties and Oxidation State Trends
    Links

    Contact me

    *** Iron (Fe) is an example of how multi valence elements are displayed.

    © 2007 James L. Rota, Rotaperiod.com


      Fm - Fermium

    • Atomic Number: 100
    • Atomic Weight (Mass): 257.00000
    • Melting Point: 1527 °C
    • Boiling Point: 0 °C
    • Orbital Class: 5f
    • Orbital: [Rn] 5f12 7s2
    • Class: Actinides
    • Electronegativity: 1.3
    • Density: unknown
    • Van der Waals Radius: .200 nm
    • Ionic Radius: unknown
    • First Ionization Energy: 627.16 kJ mol-1
    • Second Ionization Energy: unknown
    • Third Ionization Energy: unknown
    • Heat of Fusion: unknown
    • Heat of Vaporization: unknown
    • Heat of Atomization: 141 kJ mol-1
    • Electrical Conductivity: unknown
    • Thermal Conductivity: unknown
    • Related To: B, Al, Sc, Co, Ni, Ga, Y, Ag, In, La, Nd, Pm, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu, Au, Tl, Ac, Cm, Cf, Es, Fm, Md, No, Lr,
    • Valences
      I II III IV V VI VII VIII
      1+

      2+

      3+

      4+

      5+

      6+

      7+

      8+

      3-

      2-

      1-

      0

      * Fm

      Fermium is a Block F, Group 3, Period 7 element. The electronic configuration is [Rn] 5f12 7s2. In its elemental form fermium's CAS number is 7440-72-4. The fermium atoms Van der Waals radius is 200.pm.

      Fermium was discovered by Albert Ghiorso in 1953. Named in honour of Enrico Fermi.

      French: Fermium, German: Fermium, Italian: fermio, Portuguese: fermio, Spanish: fermio, Swedish: Fermium

      This element can be purchased in a variety of forms including as metal, compounds, ultra high purity, nanoparticles, and isotopes at www.americanelements.com

      Reproduced With Permission: www.americanelements.com

      #######

      Click Here For More Information About Fermium: Wikipedia.org

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