Shristy Maurya Asked a Question
October 1, 2020 9:58 pmpts 30 pts
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 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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    Shristy Maurya
    sir option c is given
  • Priyanshu kumar thankyou
    Lanthanoid contraction is due to poor sheilding effect of one of 4f electron by another in the subshell.
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    Priyanshu kumar
    option A
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