The d block: transition metals 2.5 / 5 based on 3 ratings ? ChemistryTransition metalsA2/A-levelOCR Created by: Lacey ReadCreated on: 16-12-12 11:22 At least 1 partially filled sub shell qualifies a metal to be a ... transition metal 1 of 7 Which sub-shell has lower energy? 4s 2 of 7 When d block metals react to form ions, which sub shell loses them first? 4s 3 of 7 What does the small difference in successice ionisation enthalpies mean? Variable oxidation states 4 of 7 When do the metals covently bond with electronegative elements? Higher oxidation states 5 of 7 When electron transitions occur in the 3d sub shell, coloured ions are formed 6 of 7 Why can transition metals form complexes? The 3d orbitals can accomodate electrons from ligands 7 of 7
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