Lawrencium

Actinide

Symbol: Lr

Atomic Number: 103

Standard State: Solid

Atomic Mass: 266.12

Electron Configuration: [Rn]7s2 5f14 6d1

Electronegativity: 1.3

Atomic Radius:

Ionization Energy:

Melting Point: 1900

Boiling Point:

Density:

Year Discovered: 1961