If Aufbau rule is not followed, K-19 will be placed in ….. Block (1

1.	If Aufbau rule is not followed, K-19 will be placed in ….. Block (1) s (2) p (3) d (4) f
Answer» Solution :If Aufbau rule is not followed then, 19TH ELECTRON in K enters in 3D sub-shell, not in 4s.

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