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Periodic Table of Elements

Element Meitnerium - Mt

Comprehensive data on the chemical element Meitnerium is provided on this page; including scores of properties, element names in many languages, most known nuclides of Meitnerium. Common chemical compounds are also provided for many elements. In addition technical terms are linked to their definitions and the menu contains links to related articles that are a great aid in one's studies.

Meitnerium Menu

• Meitnerium Page One
  • Overview of Meitnerium
  • Meitnerium's Name in Other Languages
  • Atomic Structure of Meitnerium
  • Chemical Properties of Meitnerium
  • Physical Properties of Meitnerium
  • Regulatory / Health
  • Who/When/Where/How
• Meitnerium Page Two
  • Nuclides / Isotopes
  • Potential Parent Nuclides

Overview of Meitnerium

• Atomic Number: 109
• Group: 9
• Period: 7
• Series: Transactinides

Meitnerium's Name in Other Languages

• Latin: Meitnerium
• Czech: Meitnerium
• Croatian: Meitnerij
• French: Meitnerium
• German: Meitnerium - s
• Italian: Meitnerium
• Norwegian: Meitnerium
• Russian: Майтнерий
• Spanish: Meitnerio

Atomic Structure of Meitnerium

• Atomic Radius:
• Atomic Volume:
• Covalent Radius:
• Cross Section (Thermal Neutron Capture) σ_a/barns:
• Crystal Structure:

• Electron Configuration:

  1s² 2s²p⁶ 3s²p⁶d¹⁰ 4s²p⁶d¹⁰f¹⁴ 5s²p⁶d¹⁰f¹⁴ 6s²p⁶d⁷ 7s²

• Electrons per Energy Level: 2,8,18,32,32,15,2

  Shell Model
  

• Ionic Radius:
• Filling Orbital:
• Number of Electrons (with no charge): 109
• Number of Neutrons (most common/stable nuclide): 157
• Number of Protons: 109
• Oxidation States:
• Valence Electrons:

Chemical Properties of Meitnerium

• Electrochemical Equivalent:
• Electron Work Function:
• Electronegativity: N/A (Pauling); N/A (Allrod Rochow)
• Heat of Fusion: kJ/mol
• Incompatibilities:

• Ionization Potential
  • First:
• Valence Electron Potential (-eV):

Physical Properties of Meitnerium

• Atomic Mass Average: 266
• Boiling Point:
• Coefficient of lineal thermal expansion/K^-1: N/A
• Conductivity

  Electrical:
  Thermal:

• Description:

  Man made radioactive metal. Does not occur in nature.

• Flammablity Class:
• Freezing Point: see melting point
• Heat of Vaporization: kJ/mol
• Melting Point:
• Physical State (at 20°C & 1atm):
• Specific Heat:

Regulatory / Health

• CAS Number
  • 54038-01-6
• NFPA 704
  • Health:
  • Fire:
  • Reactivity:
  • Special Hazard: Radioactive<
  • OSHA Permissible Exposure Limit (PEL)
    • No limits set by OSHA
  • OSHA PEL Vacated 1989
    • No limits set by OSHA
  • NIOSH Recommended Exposure Limit (REL)
    • No limits set by NIOSH
  • Levels In Humans:
    Note: this data represents naturally occuring levels of elements in the typical human, it DOES NOT represent recommended daily allowances.
    • Blood/mg dm^-3: nil
    • Bone/p.p.m: nil
    • Liver/p.p.m: nil
    • Muscle/p.p.m: nil
    • Daily Dietary Intake: nil
    • Total Mass In Avg. 70kg human: nil

  Who / Where / When / How

  • Discoverer: Peter Armbruster, Gottfried Münzenberg, et. Al.
  • Discovery Location: Darmstadt Germany
  • Discovery Year: 1982
  • Name Origin:

    Named for Lise Meitner, a Swedish physicist who helped discover protactinium and first split the nucleus of uranium, creating what her team dubbed "fission".

  • Abundance of Meitnerium:
    • Earth's Crust/p.p.m.: nil
    • Seawater/p.p.m.: nil
    • Atmosphere/p.p.m.: nil
    • Sun (Relative to H=1E¹²): N/A
  • Sources of Meitnerium:

    First synthetically produced by bombarding Bi209 with accelerated nuclei of Fe58. Only a few atoms have ever been produced.

  • Uses of Meitnerium:

    None

  • Additional Notes:

    In August of 1997 the International Union of Pure and Applied Chemistry announced the official naming of this element as Meitnerium.

  Meitnerium Menu

  • Meitnerium Page One
    • Overview of Meitnerium
    • Meitnerium's Name in Other Languages
    • Atomic Structure of Meitnerium
    • Chemical Properties of Meitnerium
    • Physical Properties of Meitnerium
    • Regulatory / Health
    • Who/When/Where/How
  • Meitnerium Page Two
    • Nuclides / Isotopes
    • Potential Parent Nuclides

  References

  A list of reference sources used to compile the data provided on our periodic table of elements can be found on the main periodic table page.

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  • Chemical Database
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