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Classification of Elements and Periodicity in Properties — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryClassification of Elements and Periodicity in Properties1 Mark
MCQ
Diagonal relationship is shown by :
  • A
    $\ce{B−S}$
  • ✓
    $\ce{Li−Mg}$
  • C
    $\ce{Mg−Ca}$
  • D
    $\ce{S−Se}$
✓

Answer

Correct option: B.
$\ce{Li−Mg}$
As we move across the period, the size of atoms decreases and as we move down the group, the size of the atoms gradually increases. The diagonal relationship is due to the similarity in size of the atoms.
Diagonal relationship in the periodic table.
What is the Diagonal Relationship in the Periodic Table? Explain with few Examples
For example, Boron and silicon are both semiconductors that generate halides that are hydrolysed in water and have acidic oxides.
Therefore, Diagonal relationship is shown by $\ce{Li−Mg}.$

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