Chemistry, asked by athirasnairsang9147, 3 days ago

Size of elements of group3 A decrease ir increase?

Answers

Answered by avnimasih9
2

Answer:

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Explanation:

you move down an element group (column), the size of atoms increases. This is because each atom further down the column has more protons and neutrons and also gains an additional electron energy shell. As you move across an element period (row), the overall size of atoms decreases slightly.

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