Transcription of Objectives d- d- f- f-
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Objectives d- d- f- f-
the d -block of the periodic table contains the elementsof the groups 3-12 in which the d orbitals areprogressively filled in each of the four long elements constituting the f -block are those inwhich the 4 f and 5 f orbitals are progressively filledin the latter two long periods; these elements are formalmembers of group 3 from which they have been takenout to form a separate f-block of the periodic names transition metals and inner transitionmetals are often used to refer to the elements of d-andf-blocks are mainly three series of the transitionmetals, 3d series (Sc to Zn), 4d series (Y to Cd) and 5dseries (La to Hg, omitting Ce to Lu).
211 The d- and f- Block Elements The electronic configurations of Zn, Cd and Hg are represented by the general formula (n-1)d10ns2.The orbitals in these elements are ...
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