Transcription of THE p -BLOCK ELEMENTS - NCERT
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THE p -BLOCK ELEMENTS - NCERT
307 C:\ChemistryXI\Unit-11\Unit-11-F\Unit-11 (reprint).pmd, Reprint p -BLOCK ELEMENTSUNIT 11 After studying this unit, you will beable to appreciate the general trends in thechemistry of p -BLOCK ELEMENTS ; describe the trends in physical andchemical properties of group 13 and14 ELEMENTS ; explain anomalous behaviour ofboron and carbon; describe allotropic forms of carbon; know the chemistry of someimportant compounds of boron,carbon and silicon; list the important uses of group 13and 14 ELEMENTS and p - block ELEMENTSIn p -BLOCK ELEMENTS the last electron enters the outermostp orbital. As we know that the number of p orbitals is threeand, therefore, the maximum number of electrons that canbe accommodated in a set of p orbitals is six.
THE p -BLOCK ELEMENTS In p-block elements the last electron enters the outermost p orbital. As we know that the number of p orbitals is three and, therefore, the maximum number of electrons that can be accommodated in a set of p orbitals is six. Consequently there are six groups of p–block elements in the periodic table numbering from 13 to 18.
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