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Electron enters the sub-shell for which (n+l) value is minimum. This is enunciated as:
(1) Hund's rule
(2) Aufbau principle
(3) Heisenberg uncertainty principle
(4) Pauli's exclusion principle
Ans: Aufbau principle
Which set of quantum numbers are not possible from the following: (1) n=3, l= 2, m=0, s= -1/2 (2) n=3, l= 2, m=-2 s= -1/2 (3) n=3, l= 3, m=-3,
In a potassium atom, electronic energy levels are in the following order: (1) 4s>3d (2) 4s>4p (3) 4s (4) 4s Ans: 4s
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If n+l= 6 , then total possible number of subshells would be: (1) 3 (2) 4 (3) 2 (4) 5 Ans: 3
I have a question about HNMR OF RESONANCE system.
Illustrate objectives of heat treatment processes Heat treatment is normally adopted for the following: (i) To refine grain structure (ii) To improve machinability (ii
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