Atomic number:103

Group numbers:3

Period:7

Electronic configuration:[Rn] 5f¹⁴ 6d¹ 7s²

Formal oxidation number:+3

Electronegativities:-

Atomic radius / pm:-

Relative atomic mass:[262]

 

Lawrencium was discovered by Albert Ghiorso, Torbjorn Sikkeland, Almon E. Larsh, and Robert M. Latimer (US) in 1961. Named in honour of Ernest O. Lawrence, inventor of the cyclotron. It is a synthetic radioactive metal. Lawrencium was produced by bombarding a mixture of three isotopes of californium with boron-10 and boron-11 ions. Eight isotopes of lawrencium have been synthesized to date, with the longest-lived being lawrencium-256, which has a half-life of about 30 seconds.

Density / g dm^-3:-

Molar volume / cm³mol^-1:-

Electrical resistivity / μΩcm:- (20 °C)

Thermal conductivity / W m^-1K^-1:-

Melting point / °C:-

Boiling point / °C:-

Heat of fusion / kJ mol^-1:-

Heat of vaporization / kJ mol^-1:-

Heat of atomization / kJ mol^-1:308

1st ionization energy / kJ mol^-1:-

2nd ionization energy / kJ mol^-1:-

3rd ionization energy / kJ mol^-1:-

in the atmosphere / ppm:-

in the Earth's crust / ppm:-

in the oceans / ppm:-