Question

How does the ionization potential of an element var with atomic volume?

Answer 1

Explanation:

Ionisation potential simply means the amount of energy required to remove an electron from an element. When you remove the first electron using energy, it's called first ionisation potential; removing another electron, then it's second ionisation potential and so on….

Considering a group, when you go down, the atomic volume increases, that means the electrons are getting far away from nucleus' attraction, so it becomes easy to remove electrons, which means the ionisation potential decreases.

But when you go from left to right in a period in periodic table, the atomic volume decreases and due to more electrons, electrons' attraction with nucleus increases, so you need higher energy to remove electron, that means ionisation potential increases.

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