Problem: For the following set of atoms and ions, arrange the members in order of decreasing size: Rank items from largest to smallest. To rank items as equivalent, overlap them.Ca, Se3+, Ti4-For the following set of atoms and ions, arrange the members in order of decreasing size: Rank items from largest to smallest. To rank items as equivalent, overlap them.Ca2+, Cl-, K+

FREE Expert Solution

Recall:ionic radius size of an ion


Trend for ionic radius:

• increases from right to left and down a period in the periodic table

• increases with increasing number of electrons


For this problem:

Step 1: Determine the electrons in each species.

Step 2: Compare the charges if they are isoelectronic.

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Problem Details

For the following set of atoms and ions, arrange the members in order of decreasing size: Rank items from largest to smallest. To rank items as equivalent, overlap them.

Ca, Se3+, Ti4-

For the following set of atoms and ions, arrange the members in order of decreasing size: Rank items from largest to smallest. To rank items as equivalent, overlap them.

Ca2+, Cl-, K+