How does atomic size vary from left to right and from up to down in the modern periodic table?
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left to right atomic size decreases and from top to bottom it increases
btsisthebest:
Why ?
because left to right atom pulls the electron as it increases so atomic size decreases and vice versa
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Left to right reduces because as the no. of electrons increses the nucleus tends to pull the valence shell towards it.
Top to bottom increases because new shells are being added up and hence nuclear force on valence shell will be less.
Top to bottom increases because new shells are being added up and hence nuclear force on valence shell will be less.
thank u
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