Edexcel A Level Chemistry: Transition
Metals 2024 exam Questions and
Answers
What is a d block element? - Answer>>highest energy, last
valence electron in d-orbital
what is a transition metal? - Answer>>an element with one or
more stable ions with incomplete d orbitals
give 4 common properties of transition metals -
Answer>>variable oxidation states, forms complex ions,
catalytic properties, forms coloured compounds
what is a complex ion? - Answer>>metal ion surrounded by
ligands bonded by co-ordinate bonds
what is a ligand? - Answer>>negatively charged ion / neutral
molecule with a lone pair of electrons
what shape would a complex ion with a coordination number of 6
form? - Answer>>octahedral
what is coordination number? - Answer>>The number of
coordinate bonds attached to metal ion in a complex ion
What is a monodentate ligand? - Answer>>forms one
coordinate bond
What is a bidentate ligand? - Answer>>forms two coordinate
bonds
What is a polydentate ligand? - Answer>>forms five/six
coordinate bonds
, give 5 examples of a monodentate ligand - Answer>>Cl-, OH-,
CN-, NH3, H2O
give two examples of a bidentate ligand - Answer>>1,2-
diaminoethane (H2NCH2CH2NH2), ethanedioate (C2O4 2-)
give an example of a polydentate ligand - Answer>>EDTA 4-
what shape would a molecule with a coordination number of 2
form? - Answer>>linear
what shapes might a molecule with a coordination number of 4
form? - Answer>>tetrahedral, square planar
why might a molecule with a coordination number of 4 form a
tetrahedral shape? - Answer>>large ligands, eg Cl-
why do some transition metals form coloured compounds? -
Answer>>ligand binding splits 5d orbitals into two higher and
three at lower energy levels, light absorbed and promotes lower
electron to higher energy level, remaining wavelengths in visible
region transmitted, we see colour
why are Zn 2+ ions colourless? - Answer>>d orbitals full, no d-d
transition
why are Sc 3+ ions colourless? - Answer>>no electrons in the d
block
give the colour of the V 2+ ion (oxidation state 2) -
Answer>>Lavender
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller RevisionKing. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.11. You're not tied to anything after your purchase.
