Shristy Maurya Asked a Question
August 7, 2020 12:02 ampts 30 pts
9. For s and p valence orbitals, overlap decreases on A group of periodic table while B is true for the transition metals. That is why the heat of atomization of the main group metals C with increasing atomic numbers while B trend is observed for transition metals. Here A, B and C respectively are: (a) Ascending, opposite, increases (C) Descending, the same, geos up (b) descending, opposite, falls (d) ascending, the same, falls ANSWED KAV
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  • Priyanshu kumar Best Answer
    Option B is correct
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    Shristy Maurya
    explanation ??
  • Priyanshu kumar thankyou
    Enthalpy of atomisation depend upon the number of unpaired electron more is unpaired electron more is enthalpy of atomisation.Upto the middle of the series, the number of unpaired ...
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    Priyanshu kumar
    Got this shristy??
  • Ashutosh singh
    Dear Shristhy.
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    Ashutosh singh
    B is the correct answer. The effective overlap of s and p orbitals decreases while descending the periodic table.
  • Ashutosh singh
    Due to increase in the sizes and principal quantum number, the d orbitals start coming in the picture. That's why it decreases while descending down the group. Hope it helps. 😊
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