Question

what is by ionization ? Explain the trend of ionization energy along period .​

Answer 1

Hlo mate

Here's your answer

The general trend is for ionisation energies to increase across a period. ... That causes greater attraction between the nucleus and the electrons and so increases the ionisation energies. In fact the increasing nuclear charge also drags the outer electrons in closer to the nucleus.

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Answer 2

Answer:

            Ionization energy is defined as the minimum amount of energy required to remove the outermost electron from an isolated gaseous atom.

Explanation:

                    A high value of ionization energy means stronger attraction between the nucleus and the outermost electron.

Trends:

           The ionization energy value decreases from top to bottom in a group.This is because the shielding effect in atoms increases as you descend.Greater shielding effect results in a weaker attraction of the nucleus for the valance electron.So,they are easier to remove.This leads to decrease in ionization energy from top to bottom in a group.

ii_As you move from left to right in a period,the shielding effect remains constant but progressively nuclear charge increases.A stronger force of attraction between nucleus and the valence electron increases.This leads to increase in ionization energy from left to right in a period.

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