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TM revision

TM revision. Write down the electronic configuration for Co 3+ Explain how this shows that Cobalt is a transition metal What is the overall charge on this complex [Co(NH 3 ) 5 Cl] containing Co(III)

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TM revision

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  1. TM revision • Write down the electronic configuration for Co3+ • Explain how this shows that Cobalt is a transition metal • What is the overall charge on this complex [Co(NH3)5Cl] containing Co(III) • Sketch a 3D representation of this complex , name the shape, state the coordination number and bond angles

  2. Answers • [Ar] 4s23d7 • Cobalt forms an ion Cobalt (III) which has an incomplete 3d subshell , therefore Cobalt is a TM. • 2+ because Cl is Cl- • 3D shape octahedral NH3 ligand bonds through N as that has the lone pair, bond angle is 90degrees, must show 2 wedges/hash lines

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