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@Dexter
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.@Dexter
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.xD video dekh le?
single electron system, whether it is in shell 1, or 2 or 3 (n value changing)
only then energy changes
2s 2p are the same level.
BUT this is a two electron system
that kinda complicates things.
you are assuming 1st excited = one electron increases its energy.
2nd excited state = same electron gets promoted.
why?
energy diff between 2s and 2p
Is lower than 1s and 2s.
this q should not be in jee lol but i think ye pyq hai or some rot book like NA, which is why i solved it
upar ka part samajh me aaya?