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some imp. pts about d and f block elements 1)all transition elements are d block elements but all d block are nt transition elements 2)lightest transition metal is Sc (denstity 3.1 g / cm^3) heaviest transition metal is osmium 3)the reactivity of transition metals decreases with increase in atomic number 4)All elements of 3d series are good reducing agaents except copper 5)Cu+ with d10 electronic configuration shld be stable bt d9 is more stable due to increased hyb. 6)Mo is used in X ray tubes , Ta in analytic weights instru
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submitted by chimanshu_007 (11407 m) on 23 May 2007 13:19:55 IST (3 comments 300 views)
