Problem: Based on their positions in the periodic table, list the following atoms in order of increasing radius: Sr, Ca, Si, Cl.

FREE Expert Solution
  • The atomic radius of an atom is measured as one half the distance between two nuclei in a diatomic molecule.
  • In general, atomic radius decreases from left to right across a period. This is because as protons are added in a period, electrons are also added in the same principal energy level. The protons causes an increase in positive charge which pulls the electron closer to the nucleus. 
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Problem Details

Based on their positions in the periodic table, list the following atoms in order of increasing radius: Sr, Ca, Si, Cl.

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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: Atomic Radius concept. You can view video lessons to learn Periodic Trends: Atomic Radius. Or if you need more Periodic Trends: Atomic Radius practice, you can also practice Periodic Trends: Atomic Radius practice problems.

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Our data indicates that this problem or a close variation was asked in Chemistry - OpenStax 2015th Edition. You can also practice Chemistry - OpenStax 2015th Edition practice problems.