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Atomic number is considered to be a more appropriate parameter than atomic mass for the classification of elements in a periodic table. Why?How does atomic size of elements vary on moving from:(i) left to right in a period?(ii) top to bottom in a group?​Give reasons for your answers.

Answer» Atomic number is considered to be a more appropriate parameter than atomic mass for the classification of elements in a periodic table. Why?

How does atomic size of elements vary on moving from:

(i) left to right in a period?

(ii) top to bottom in a group?

​Give reasons for your answers.


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