Chemistry Transition metals 4.5 / 5 based on 4 ratings ? ChemistryTransition metalsA2/A-levelAQA Created by: Mark18Created on: 15-05-14 19:53 State 4 chemical properties of transition metals Variable oxidation states, coloured ions, catalysis, complex formation 1 of 12 When an transition metal ion is formed where are the electrons lost from The 4s2 orbitals and then the 3d orbitals 2 of 12 What is the definition of a transition metals An element which forms at least one stable ion with a part full d-shell of electrons 3 of 12 What is the coordination number The number of co-ordinate bonds to the ligand 4 of 12 What is a multi-dentate ligand A ligand with more than one lone pair available for a coordinate bond 5 of 12 State a complex ion with a square planar shape [Ni(CN)4]2- , [Pt(NH3)2(Cl)2] 6 of 12 State a complex ion with a linear shape [Ag(NH3)2]+ 7 of 12 State a complex ion with a tetrahedral shape [Co(Cl)4]2- 8 of 12 State a complex ion with a octahedral shape [Co(H20)6]2+ 9 of 12 State the expression that links frequency of light to energy difference ΔE = hv 10 of 12 What is the reaction between MnO4- and Fe2+ 5Fe2+ + MnO4- + 8H+ -------> 4H2O + Mn2+ + 5Fe3+ 11 of 12 What is the reaction between Cr2O7 2- and Fe2+ Cr2O7 2- + 6Fe2+ +14H+ -------> 7H2O + 6Fe3+ + 2Cr3+ 12 of 12
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