Answers

2015-01-12T13:51:08+05:30
Number of shells represent the period.
Number of valence electrons represent groups.
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2015-01-13T15:07:15+05:30
the electronic configuration relates to the periodic table in the form of blocks. say for example, s block, p block or d and f block. We write the periodic position of the atom while writing its electronic configuration.

Say for example, for HYDROGEN, THE ELECTRONIC CONFIGURATION IS, 1S1


hope this helps you!!!
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