The last quantum layer for the electron arrangement of Mn(Z=25) is stabilized by(U - Up, D- Down):
(a) UD UD U
(b) U U U U U
(c) UD U U U
(d) U UD U U U U
Is the correct answer B?
In steels, carbon atoms occupy following interstitial sites between normal atomic positions of iron with FCC unit cells:
(a) (1,1,1) (0.5,0,0) (1,0,1)
(b) (0.5,0,0) (1,0,1) (0.5,1,1)
(c) (0.5,0,0) (1,0.5,0) (0.5,1,1)
(d) (0.5,1,0.5) (1,0,1) (0.5,0,0)
Is the correct answer C?
Two simple MCQ questions Watch
- Thread Starter
- 11-04-2013 18:43
- 14-04-2013 16:05
Your answer to the first question is correct, as it is in accordance with Hund's Rule of Maximum Multiplicity and the Pauli Exclusion Principle.
Don't know the answer to the second question, though. Sorry.