the correct order for increasing atomic radius of the following element is: S , O , SE , C ?? why??
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Answer:
O< S<Se
Explanation:
Oxygen, Sulphur and Selenium belong to chalcogens family.[16th grp]
As we move down the group, atomic radii increases, valence electrons are more shielded by atoms and electrons are added into new orbits. so radius of atoms increase...
hope this helps a little..
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