The Successive Ionization Energies of a Certain Element Are I₁=

question 99

Multiple Choice

The successive ionization energies of a certain element are I₁= 577.9 kJ/mol, I₂ = 1820 kJ/mol, I₃= 2750 kJ/mol, I₄ = 11,600 kJ/mol, and I₅ = 14,800 kJ/mol. This pattern of ionization energies suggests that the unknown element is

• A) K
• B) Al
• C) Cl
• D) Se
• E) Kr

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