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Chapter 6: Q70E (page 277)

Question:Based on their positions in the periodic table, predict which has the smallest first ionization energy: Li, Cs, N, F, I.

Short Answer

Expert verified

Cs have the lowest first ionization energy.

Step by step solution

01

Discuss the trend in ionization energy across the periodic table.

As we go down the table across the rows, ionization energy decreases. In other words, ionization energy increases from bottom to top in a periodic table.

Ionization energy increases, increases as we move from left to right in a periodic table.

02

predicting which among the given element has the smallest first ionization energy

Observing the trends of the periodic table, the smallest first ionization energy is of Cs because it is closest to the bottom-left of the periodic table.

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