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RH

How many half-filled orbitals are there in a manganese (atomic number 25) atom? A. 4 B. 1 C. 5 D. 3 E. 2

  • 9 months ago
  • 9 months ago

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  1. RH
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    Is B the correct answer?

    • 9 months ago
  2. ANISH95
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    no. its not, write the electronic config.

    • 9 months ago
  3. RH
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    1s2 2s2 2p6 3s2 3p6 3d5 4s2

    • 9 months ago
  4. ANISH95
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    the complete electronic configuration

    • 9 months ago
  5. RH
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    is this correct?

    • 9 months ago
  6. ANISH95
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    absolutely. correct. gd!

    • 9 months ago
  7. ANISH95
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    now how many unpaired electrons are there

    • 9 months ago
  8. RH
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    can you explain how to know how many unpaired electrons there are?

    • 9 months ago
  9. ANISH95
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    except for 3d, each orbital has even number of electrons, which implies paired electrons. do you know how many orbitals are there in d

    • 9 months ago
  10. RH
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    5 orbitals?

    • 9 months ago
  11. ANISH95
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    yes.... right, now you see that 3d subshell has 5 orbitals and 5 electrons are to be housed in these 5 orbitals. try to fill 5 electrons in 5 orbitals. you will have the answer,

    • 9 months ago
  12. ANISH95
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    u know hund's rule of maximum multiplicity? the only way to do this is to fill each orbital with 1 electron and this arrangement will give you 5 alone electrons.....(which are not paired up)

    • 9 months ago
  13. ANISH95
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    any difficulty.?

    • 9 months ago
  14. RH
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    I think I understand now. but how do you know which rule to use to find half-filled orbitals?

    • 9 months ago
  15. ANISH95
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    there are three main rules to write electronic configurations. 1) afbau principle 2) hunds rule of maximum multiplicity 3) pauli's exclusion principle..................... this last one is of minimal importance in writing configurations but you must learn the above two to know how to write electronic configuration

    • 9 months ago
  16. RH
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    Ok!!! Thanks a lot!

    • 9 months ago
  17. RH
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    so there are 5 half filled orbitals in a manganese atom?

    • 9 months ago
  18. ANISH95
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    yes there are 5

    • 9 months ago
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