Question

How many periods are there in the Modern Periodic

Q: How many periods are there in the Modern Periodic Table?

TheModernPeriodicTableconsistsof7horizontalrowsknownasperiodsEachperiodcorrespondstoanewprincipalenergylevelwhichholdstheelementsplacedaccordingtotheirincreasingatomicnumber

Table?

A 5

B 11

C 9

D 7

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How many periods are there in the Modern Periodic

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