Transition elements kya hota h?
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Posted by Sakshi Singh 6 years, 5 months ago
- 3 answers
Sia ? 6 years, 5 months ago
Elements in which the last electron enters the d-orbitals, are called d-block elements. These elements have general outer electronic configuration (n-1)d1-10 ns0-2. Zn, Cd and Hg which have general electronic configuration, (n-1) d10ns2 do not show most of the properties of transition elements. d-orbitals in these elements are completely filled in the ground state as well as in their common oxidation states. Thus, on the basis of properties, all transition elements are d-block elements but on the basis of electronic configuration, all d- block elements are not transition elements.
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Sia ? 6 years, 5 months ago
have large charge/radius ratio;
are hard and have high densities;
have high melting and boiling points;
form compounds which are often paramagnetic;
show variable oxidation states;
form coloured ions and compounds;
form compounds with profound catalytic activity;
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