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CBSE Class 10 Answered

why does the atomic size not increase when we move from left to right in a period ?
Asked by rashipere | 05 Feb, 2011, 12:00: AM
Expert Answer
Dear Student
 
Because with increase in number of electrons, number of protons are also increasing in the nucleus. Thus, you are adding one more proton every time hence increasing the nuclear charge of the atom. An increased nuclear charge means the nucleus attracts the electrons more to it hence the size of the atom decreases as it "tightens". hence the atomic radius decreases every time.
 
 
We hope that clarifies your query.
Regards
Team
\Topperlearning
Answered by | 06 Feb, 2011, 09:04: AM
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