Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    1
    ReputationRep:
    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?



    Thanks
    Offline

    0
    ReputationRep:
    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.
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Brexit voters: Do you stand by your vote?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Write a reply...
    Reply
    Hide
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.