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- 🇬🇧 Lawrencium
- 🇺🇦 Лоуренсій
- 🇨🇳 鐒
- 🇳🇱 Lawrencium
- 🇫🇷 Lawrencium
- 🇩🇪 Lawrencium
- 🇮🇱 לורנציום
- 🇮🇹 Lawrentio
- 🇯🇵 ローレンシウム
- 🇵🇹 Lawrencium
- 🇪🇸 Lawrencio
- 🇸🇪 Lawrencium
- 🇷🇺 Лоуренсий
- Name: lawrencium
- Symbol: Lr
- Atomic number: 103
- Relative atomic mass (Ar): [ 262 ] (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: 3
- Group name: (none)
- Period in periodic table: 7
- Block in periodic table: d
- Shell structure: 2.8.18.32.32.9.2
- CAS Registry: 22537-19-5
Lawrencium atoms have 103 electrons and the shell structure is 2.8.18.32.32.9.2. The ground state electronic configuration of neutral lawrencium is [Rn].5f14.6d1.7s2 (a guess based upon that of lutetium) and the term symbol of lawrencium is 2P1/2 (tentative).
Lawrencium: description
Lawrencium is a synthetic "rare earth metal" which does not occur in the environment.
Lawrencium: 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
Lawrencium: heat properties
- Melting point on a miniature periodic table spark table Melting point: about 1900 [1627 °C (2961 °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
Lawrencium: 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: 161 (coordination number 3) ppm
- van der Waals radius on a periodic table spark table van der Waals radius: (no data) ppm
Lawrencium: electronegativities
- Pauling electronegativity of the chemical elements on a miniature periodic table spark table Pauling electronegativity: (no data) (Pauling units)
- Allred-Rochow electronegativity of the chemical elements on a miniature periodic table spark tableAllred Rochow electronegativity: (no data) (Pauling units)
- Mulliken-Jaffe electronegativity of the chemical elements on a miniature periodic table spark tableMulliken-Jaffe electronegativity: (no data)
Lawrencium: orbital properties
- First ionization energy the chemical elements on a miniature periodic table spark table First ionisation energy: 479 kJ mol‑1
- Second ionization energy the chemical elements on a miniature periodic table spark table Second ionisation energy: 1400 kJ mol‑1
- Third ionization energy the chemical elements on a miniature periodic table spark table Third ionisation energy: 2100 kJ mol‑1
Lawrencium: 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
Lawrencium: crystal structure
Lawrencium: 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
Lawrencium has no biological role.
(追記) (追記ここまで)
Lawrencium: uses
Lawrencium: reactions
Reactions of lawrencium as the element with air, water, halogens, acids, and bases where known.
Lawrencium: binary compounds
Binary compounds with halogens (known as halides), oxygen (known as oxides), hydrogen (known as hydrides), and other compounds of lawrencium where known.
Lawrencium: compound properties
Bond strengths; lattice energies of lawrencium halides, hydrides, oxides (where known); and reduction potentials where known.
Lawrencium: history
Lawrencium was discovered by Albert Ghiorso, Torbjorn Sikkeland, Almon Larsh, Robert M. Latimer in 1961 at United States. Origin of name: temporary IUPAC nomenclature. The origin of the Amercian Chemical Society preferred name is Ernest O. "Lawrence", inventor of the cyclotron.Lawrencium: isotopes
Lawrencium: isolation
Isolation: coming soon!