Write the electronic configuration of two elements P (atomic number 17) and Q (atomic number 19) and determine their group numbers and period numbers in the Modern Periodic Table.

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1 Answers

EGckonic Configuration of 'P'-2,8,7

Group number - 17

Period number  3rd Period

Electronic Configuration of 'Q' - 2,8,8,1

Group number - 1

Period number - 4th Period

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