Problem: Rank the following ions in order of decreasing radius: O2-,S2-,Se2-,Te2-, and Po2-?.

FREE Expert Solution

The size of an atom or ion is dependent upon its position in the periodic table. Properties such as the ionic radius are called periodic trends because they vary as we move along a period or a group.


Ionic radius decreases as we move up a group. This is because the number of energy levels (or shells) decreases as we move up a group.


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Problem Details

Rank the following ions in order of decreasing radius: O2-,S2-,Se2-,Te2-, and Po2-?.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Periodic Trends: Ionic Radius concept. You can view video lessons to learn Periodic Trends: Ionic Radius. Or if you need more Periodic Trends: Ionic Radius practice, you can also practice Periodic Trends: Ionic Radius practice problems.