p-block Elements


p-block Elements logoSubject: Chemistry    Exam: AIPMT / NEET-UG

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Important Concepts in p-block Elements

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Important Concepts (Should Do)
  • Group 13 (IIIA - The Boron Family)

  • Group 14 (IVA - The Carbon Family)

  • Group 15 (VA - The Nitrogen Family)

  • Group 16 (VIA - The chalcogens)

  • Group 16 (VIIA - The Halogen Family)

  • Group 18 (VIIIA - The noble gases)

  • Trends Across the Periods

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Important Points

Inert pair effect is defined as the tendency of s-electrons to remain together or the reluctance of s-electrons to participate in a reaction.
P-block element consists of 13 and 14 group species. Group 13 consist of namely Boron, aluminium, gallium, indium, thallium. Aluminium is most abundant of these elements.
Group 13 is Boron family and group 14 is Carbon family.
The phenomenon of existence of different forms of an element is called allotropy.
The relative strengths of trihalides of B as Lewis acids have been determined by measuring their heats of formation as well as by studying their infrared spectra. The result of these studies is: BF3
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