Question

Why the ionization energy of boron family doesn't decrease down a group?

Answer 1

Answer:

The elements generally follow periodic trends except for certain Tl deviations: Atomic radius increases down the group (Tl has the largest atomic radius.)....,Ionization Energy decreases going down the group (because the electrons are farther from the core and therefore are easier to remove; Tl does not fit this trend)*

Explanation:

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