The total cross-sections for reactions between alkali metal atoms and halogen molecules are given in the table
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Electron affinities are approximately 1.3 eV (CI2), 1.2 eV (Br2), and 1.7 eV (I2), and ionization energies are 5.1 eV (Na), 4.3 eV (K), 4.2 eV (Rb), and 3.9 eV (Cs).
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o*/nm? Cl, Brz Na 1.24 1.16 0.97 K 1.54 1.51 1.27 Rb 1.90 1.97 1.67 Cs 1.96 2.04 1.95
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Taking o 4od1Eea nd gives Na K Rb Cs Example 242 2 e o 27 4o...View the full answer
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