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Explain S,P,D,F blocks of the modern periodic table |
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Answer» f-block elementsElements in which the differentiating electron enters into (n-2)f orbital of antipenultimate or ultimate shell are called as f-block elements.f-block contains two series 4f series called as lanthanides and 5f series called as actinides.f-block elements r also known as inner transition elements.General electronic configuration of f-block elements is- (n-2)f^1-14(n-d)^0-1ns^2 np^6 ns^1-2*(for g.e.c.of d-block elements) General electronic configuration of d-block elements - (n-1)d^1-10 ns^2 np^6 d-block elementsElements in which the differentiating electron enters into (n-1)d orbital of penultimate shell are called d-block elements.d-block contains 10 groups (3-12 groups).d-block elements are also known as transition elements except 12 group. First just remember the point that the letter denoting blocks i.e.s,p,d,f are always written in small letters.s-block Elements in which the differentiating electon enters into s-orbital of valence shell are called as s-block elements.s-block max. accomodates 2 electrons so,it has 2 groups,first group and second group.General electronic configuration of s-block elements is - ns^1-2.p-block Elements in which the differentiating electon enters into p-orbital of valence shell are called as p-block elements.p-block max. accomodates 6 electons so,it has 6 groups (13-18 groups). General electronic configuration of p-block elements is - ns^2np6. |
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