Rubidium

Element information

Atomic properties

Mass: 85.468 u

Electron configuration: [Kr]5s1

Oxidation states: +1

Electronegativity: 0.82

Physical properties

Density: 1.53 g/cm³

Standard state: solid

Melting point: 312.46 K

Boiling point: 961 K

₃₇Rb

Part of the Periodic Table 2 collection

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