Question

Electron enters in 3d orbital 4s . which law you will give in favor of above statement

Answer 1

$\huge\red{Assalamualykum}$


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This is called $\huge\pink{Aufbau principle}$



Which states that Electronic structure of atom is build according to "n+l" rule


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[tex]\huge\purple{INSHALLAH it will help U}[/tex ]