Element: Strontium (Sr)

Element (Atom) NameStrontium
Physical state at room temperatureSolid
Element ClassificationMetal
Group NameAlkaline Earth Metal
Period Number (Periodic table) 5
Group number (Periodic table)2
Atomic number38
Atomic weight87.62 (Ref: Jlab-ele038, Lanl-38, Ciaaw-strontium)
Atomic Radius249 pm (Van der Waals) (Ref: Lanl-38)
Density2.64 (Ref: Jlab-ele038)
Melting point777°C (Ref: Jlab-ele038, Lanl-38)
Boiling point1382°C (Ref: Jlab-ele038)1377 °C (Ref: Lanl-38)
Electron shell configuration1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2
Oxidation States+2 (Ref: Jlab-ele038)2, 1 ​(a strongly basic oxide) (Ref: Lanl-38)
Ionization Energy5.695 eV (Ref: Jlab-ele038)5.69486745  eV (Ref: Nist-38)
Number of Stable Isotopes4
InChI1S/Sr (Pubchem-38)

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