Textbook Question
Of the elements F, Br, Cl, and I, which (4.7)d. requires the most energy to remove an electron?
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9. Electrons in Atoms and the Periodic Table
Periodic Trend: Ionization Energy (Simplified)
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Periodic Trend: Ionization Energy (Simplified) Which element has the highest first ionization energy?
A
Sodium (Na)
B
Helium (He)
C
Chlorine (Cl)
D
Cesium (Cs)
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