Strontium

Alkaline earth metal

Symbol: Sr

Atomic Number: 38

Standard State: Solid

Atomic Mass: 87.62

Electron Configuration: [Kr]5s2

Electronegativity: 0.95

Atomic Radius: 249

Ionization Energy: 5.695

Melting Point: 1050

Boiling Point: 1655

Density: 2.64

Year Discovered: 1790