Concept explainers
Interpretation:
The reason for the cations to be smaller than their parent atoms needs to be explained.
Concept introduction:
Cations are formed by loss of electrons.
Answer to Problem 26A
Cations are smaller than their parent atoms because after losing the electrons, ion has less number of electrons but number of protons remains same. Thus, the same nuclear charge has to hold less number of electrons. Therefore, effective nuclear charge increases and the size decrease.
Explanation of Solution
Taking example:
Thus, in
Thus, cations are always smaller than their parent atoms.
Chapter 12 Solutions
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