Transition metals Flashcards
What is a transition metal?
metal with an incomplete D subshell in one of its ions
What is an oxidation state
allows us to observe what element is being oxidated or reduced
What is the oxidation number of H202 and any metal hydride?
-1
What is oxidation
increase in oxidation number
What is reduction
decrease in oxidation number
Will the metal in an OXIDISING agent have a high or low oxidation number
HIGH
Will the metal in a REDUCING agent have a high or low oxidation number
LOW
What is a ligand
electron donors that are negatively charged and will have a lone pair of e
-monodentate, bidentate, tridentate
What is the coordination number
the total number of attractions to the central metal atom
How to name metal complexes
prefix-ligand-metal _________
Why are metal complexes coloured?
incomplete 3d subshells with at least 1 3d electron
What is crystal field theory?
all 3d orbitals are degenerate and when ligands bind, they are no longer degenerate and splits
When D orbitals split, what colour of light will low difference absorb
red
When D orbitals split, what colour of light will high difference absorb
blue
