Question

Explain the trend of ionization energy in a period and a group of the periodic table.​

Answer 1

Answer:

Ionization energy refers to the amount of energy needed to remove an electron from an atom.

We we move from left to right in a period the atomic radii is decreases and the distance between neutral and electron will also decreases.

Therefore their electron affinity is increasing.

So, Ionization energy increases from left to right across the periodic table.

In group, from down a group atomic radii is Increasing and the distance between neutral and electron will also Increasing.

Therefore their electron affinity is decreasing.

So, Ionization energy decrease in group from down a group.

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