Question

the element with highest ionisation energy is?​

Answer 1

Answer:

Flourine

Explanation:

Answer 2

Answer:

Fluorine

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)

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