lutetium

Atomic number: 71
Atomic weight: 174.967
Symbol: Lu
Group number: (lanthanide)
Electronic configuration: [Xe].4f¹⁴.5d¹.6s²

Physical data

Standard state: solid at 298 K
Colour: silvery white
Density of solid at ambient temperature/kg m-3: 9841
Molar volume/cm3: 17.78

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