Periodic Classification of Elements — Science STD 10 — Question
Tamilnadu BoardEnglish MediumSTD 10SciencePeriodic Classification of Elements2 Marks
Question
Anionic radius Is higher than the corresponding neutral atom. Give reason.
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Answer
When an atom gains one or more electrons it forms an anion. During the formation of anion, the number of orbital electrons becomes greater than the nuclear charge. Hence, the electrons are not strongly attracted by the lesser number of nuclear charges. Hence anionic radius is higher than the corresponding neutral atom.
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