Question

which elements shows the less
ionization enthapy​

Answer 1

Answer:

Cesium

Explanation:

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Answer 2

Cesium

Answer. Answer: It is because of the shielding effect that the ionization energy decreases from top to bottom within a group. From this trend, Cesium is said to have the lowest ionization energy and Fluorine is said to have the highest ionization energy (with the exception of Helium and Neon).1

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