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What are d-block elements? |
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Answer» D-block elements occupy the space between the s-block and p-block in the periodic table. Since they bridge the two blocks and show a transition in the properties from the metals to the non-metals, they are also calledTransition elements.The valence electrons fills up the penultimate d-orbital energy level – according to the Aufbau principle, giving rise to four series of d-block elements – 3d, 4d, 5d and the 6d series. However 6d series is considered incomplete. In addition, as the criteria goes, the d-block elements Zinc, Cadmium and Mercury are not considered transition elements as they have completely filled d-orbitals in their ground and excited states.D-block elements show typical metallic behaviour. These are characterised by high tensile strength, malleability, ductility, electrical and thermal conductivity as well as metallic lustre. these are transition elements |
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