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- 🇬🇧 Mendelevium
- 🇺🇦 Менделеевій
- 🇨🇳 鍆
- 🇳🇱 Mendelevium
- 🇫🇷 Mendélévium
- 🇩🇪 Mendelevium
- 🇮🇱 מנדלביום
- 🇮🇹 Mendelevio
- 🇯🇵 メンデレビウム
- 🇵🇹 Mendelévio
- 🇪🇸 Mendelevio
- 🇸🇪 Mendelevium
- 🇷🇺 Менделевий
- Name: mendelevium
- Symbol: Md
- Atomic number: 101
- Relative atomic mass (Ar): [ 258 ] (longest lived isotope)
- Standard state: presumably a solid at 298 K
- Appearance: unknown, but probably metallic and silvery white or grey in appearance
- Classification: Metallic
- Group in periodic table:
- Group name: Actinoid
- Period in periodic table: 7 (actinoid)
- Block in periodic table: f
- Shell structure: 2.8.18.32.31.8.2
- CAS Registry: 7440年11月1日
Mendelevium atoms have 101 electrons and the shell structure is 2.8.18.32.31.8.2. The ground state electronic configuration of neutral mendelevium is [Rn].5f13.7s2 and the term symbol of mendelevium is 2F7/2.
Mendelevium: description
Mendelevium is a radioactive rare earth metal named after Dmitri Mendeleev, father of the Periodic Table.
Mendelevium: physical properties
- Density of the chemical elements on a miniature periodic table spark table Density of solid: (no data) kg m-3
- Molar volume of the chemical elements on a miniature periodic table spark table Molar volume: (no data) cm3
- Thermal conductivity of the chemical elements on a miniature periodic table spark table Thermal conductivity: 10 (estimate) W m‑1 K‑1
Mendelevium: heat properties
- Melting point on a miniature periodic table spark table Melting point: about 1100 [827 °C (1521 °F)] K
- Boiling point on a miniature periodic table spark table Boiling point: (no data) K
- Enthalpy of fusion on a miniature periodic table spark table Enthalpy of fusion: 20.5 kJ mol-1
Mendelevium: atom sizes
- Atomic radius (empirical) of the chemical elements on a miniature periodic table spark table Atomic radius (empirical): (no data) pm
- Covalent (single bond) radius on a periodic table spark table Molecular single bond covalent radius: 173 (coordination number 3) ppm
- van der Waals radius on a periodic table spark table van der Waals radius: (no data) ppm
Mendelevium: electronegativities
- Pauling electronegativity of the chemical elements on a miniature periodic table spark table Pauling electronegativity: 1.3 (Pauling units)
- Allred-Rochow electronegativity of the chemical elements on a miniature periodic table spark tableAllred Rochow electronegativity: 1.2 (Pauling units)
- Mulliken-Jaffe electronegativity of the chemical elements on a miniature periodic table spark tableMulliken-Jaffe electronegativity: (no data)
Mendelevium: orbital properties
- First ionization energy the chemical elements on a miniature periodic table spark table First ionisation energy: 635 (inferred) kJ mol‑1
- Second ionization energy the chemical elements on a miniature periodic table spark table Second ionisation energy: 1200 kJ mol‑1
- Third ionization energy the chemical elements on a miniature periodic table spark table Third ionisation energy: 2340 kJ mol‑1
Mendelevium: abundances
- Chemical elements abundance by weight in the universe on a miniature periodic table spark tableUniverse: (no data) ppb by weight
- Chemical elements abundance by weight in the earth's crust on a miniature periodic table spark tableCrustal rocks: (no data) ppb by weight
- Chemical elements abundance by weight in humans on a miniature periodic table spark tableHuman: (no data) ppb by weight
Mendelevium: crystal structure
Mendelevium: biological data
- Human abundance by weight of the chemical elements on a miniature periodic table spark table Human abundance by weight: (no data) ppb by weight
Mendelevium has no biological role.
(追記) (追記ここまで)
Mendelevium: uses
Mendelevium: reactions
Reactions of mendelevium as the element with air, water, halogens, acids, and bases where known.
Mendelevium: binary compounds
Binary compounds with halogens (known as halides), oxygen (known as oxides), hydrogen (known as hydrides), and other compounds of mendelevium where known.
Mendelevium: compound properties
Bond strengths; lattice energies of mendelevium halides, hydrides, oxides (where known); and reduction potentials where known.
Mendelevium: history
Mendelevium was discovered by Glenn T. Seaborg, Albert Ghiorso, Bernard Harvey, Gregory Choppin, Stanley G. Thompson in 1955 at USA. Origin of name: named after Dimitri "Mendeleev", the Russian chemist who contributed so much to the development of the periodic table.Mendelevium: isotopes
Mendelevium: isolation
Isolation: coming soon!