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.Se, Se2-, Te2-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.Fe3+, Fe2+, Co3+

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.

Se, Se2-, Te2-

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.

Fe3+, Fe2+, Co3+