The Strontium Ionization Energy is the energy required to remove from atom one mole of electrons with subsequent production of positively charged ion of Strontium.
Sr -> Sr+ + e-
This process can be repeated many times, but the energy cost is increased dramatically. The general equation for the Strontium is:
SrN+ -> Sr(N+1)+ + e-
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Sr -> Sr1+ = 549.5 kJ/mol = 131.46 Kcal/mol
Sr1+ -> Sr2+ = 1064.2 kJ/mol = 254.59 Kcal/mol
Sr2+ -> Sr3+ = 4210 kJ/mol = 1007.18 Kcal/mol
Sr3+ -> Sr4+ = 5500 kJ/mol = 1315.79 Kcal/mol
Sr4+ -> Sr5+ = 6910 kJ/mol = 1653.11 Kcal/mol
Sr5+ -> Sr6+ = 8760 kJ/mol = 2095.69 Kcal/mol
Sr6+ -> Sr7+ = 10200 kJ/mol = 2440.19 Kcal/mol
Sr7+ -> Sr8+ = 11800 kJ/mol = 2822.97 Kcal/mol
Sr8+ -> Sr9+ = 15600 kJ/mol = 3732.06 Kcal/mol
Sr9+ -> Sr10+ = 17100 kJ/mol = 4090.91 Kcal/mol
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