Question:
how to know which shell is outermost as in periodicity in element ch you give example of N in which you considered 2s^2 and 2p^3 as outermost but in next example of Sc you considered 4s^2and 3d^1 im confused , how to know which is outermost shell
Answer:
See dear, in case of any element outermost shell is the last shell of that atom. (Having highest principal quantum number)
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