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Which ion has a smaller atomic radius: Zn2+ or Ca2+?

Atomic Chemistry Ion ions Molecular physical radius sciences smaller
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Which ion has a smaller atomic radius: Zn2+ or Ca2+?

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Calcium has an atomic radius of 2.23 Angstroms while Zinc has an atomic radius of 1.53 Angstroms. Trends in the periodic table show that the atomic radius of a molecule increase from right to left and top to bottom. Hope this helps!

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