Symbol Sr Atomic radius: pm 215 Fusion: kJ/Mole 7.43
Name Strontium Ionic radius: pm (+2)126 Boiling point: C 1382
Atomic number 38 Electron affinity 0.11 Melting point: C 777
Atomic weight 87.62 1st  ion potential 5.70 Specific Heat Cap: J/(g K) 0.30
Classification Alk earth metal Natural form Solid Thermal Cond: W/(cm K) 0.35
Configuration [Kr]5s2 Crystal structure FCC Electrical Cond 0.0762
Oxidation states 2 Density 2.64 Abundance: mg/kg-crust 370
Electronegativity 0.95 Vaporization: kJ/Mole 139.0    
Strontium was discovered in 1787 by William Cruikshank. Uses - red flame in fireworks, flares, production of color television tubes, refining zinc, optical materials