From top to bottom in most groups of elements, atomic radii tend to A. decrease because the nuclear charge increases. B. decrease because electrons are lost to other elements. C. increase because electrons are gained from other atoms. D. increase because additional energy levels are filled.

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Mariela Ewing

9 November, 13:04

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Isabela Ashley · Answer 1

D. As more electrons are added to an element, the number of electron orbitals being filled increases