Lawrencium (Lr) is an actinide with atomic number 103 and atomic mass [266]. It has melting point 1900 K (1627 °C). It sits in period 7 of the periodic table and was discovered in 1961.
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Key facts
Atomic mass
[266] u
Electron configuration
[Rn]7s2 5f14 6d1
Oxidation states
+3
Electronegativity (Pauling)
1.3
Melting point
1900 K
Standard state
Solid
Discovered
1961
Domande frequenti
What is the electron configuration of lawrencium?
The ground-state electron configuration of lawrencium is [Rn]7s2 5f14 6d1.
What group and period is lawrencium in?
Lawrencium (Lr) is in period 7 (actinide series) of the periodic table, classified as a actinide.
What is the melting point of lawrencium?
Lawrencium melts at 1900 K (1627 °C).
What is the standard state of lawrencium?
Lawrencium is a solid at standard temperature and pressure.
Informazioni su questi dati: property values compiled from IUPAC Standard Atomic Weights (2021), the NIST Atomic Spectra Database, and PubChem. Curated by the Aladdin Scientific technical team. Last reviewed: .
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