Shristy posted an Question
October 02, 2020 • 03:28 am 30 points
  • IIT JAM
  • Chemistry (CY)

Which of the following factors may be regarded as the main cause of lanthanide contraction: (a) poor shielding of one of 4f- electons by another in the sub shel

Which of the following factors may be regarded as the main cause of lanthanide contraction: (a) Poor Shielding of one of 4f- electons by another in the sub shell. (b) Greater shielding of 5f- electrons by 4f- electrons. 8) (c) Poorer shielding of 5d- electrons by 4f electrons (d) Effective shielding of one 4f-electrons by another in the sub shell. L 1-

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    Dinesh khalmaniya 1 Best Answer

    option A Lanthanoid contraction is due to poor sheilding effect of one of 4f electron by another in the subshell.

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    sir option c is given

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    option A is correct..

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    check this video explanation https://youtu.be/uPTKTL6yzoE

  • comment-profile-img>
    Priyanshu kumar best-answer

    Lanthanoid contraction is due to poor sheilding effect of one of 4f electron by another in the subshell.

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    option A

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    sir option c is given

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    main cause is option A

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    so what will be the option??

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