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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 Properties3 Marks
Question
Write four characteristic properties of p-block elements.
✓

Answer

General characteristics of p-block elements:
  1. The general electronic configuration of p-block elements is $\mathrm{ns}^2 \mathrm{~np}^{1-6}$.
  2. These elements include metals and non-metals with a few semi metals (Metalloids)
  3. Most of them form covalent compounds.
  4. These elements possess relatively higher ionisation energy and the value tends to increase along the period but decrease down the group.
  5. Most of the elements show negative (except some metals) as well as positive oxidation states (except Fluorine).
  6. One of the familiar characteristic of p-block elements is to show inert pair effect i.e. the tendency of being less availability for ns electron in bonding. The inert pair effect increases down the group with the increase in atomic number.

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