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Description
Flashcards by I Shouldn't be awake, updated more than 1 year ago
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Created by I Shouldn't be awake
over 6 years ago
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| Question | Answer |
| What are D block Elements? | Elements w/ highest energy electrons in D subshell group 2-13 |
| Properties of D block elements | High melting/boiling point shiny conduct electricity |
| Which elements are the outliers in electron orbital arrangement? | Cu and Cr Have 1/2 filled orbitals, which are stable |
| What are transition elements? | D-block elements that form at least 1 ion w/ a partially filled D-orbital |
| Properties of transition metals | Form compounds in which TM has different oxidation states Form coloured compounds Elements and compounds can act as catalysts |
| Which are the outliers and why? | Sc and Zn Sc can only lose 1 electron, so can't have partially filled Zn only ever forms 2+ ions, has complete d orbital |
| What is the colour of a solution linked to? | Partially filled d-orbitals of TM ion |
| Example of a TM catalysed reaction | N2 + 3H2 <-> 2NH3 Haber process finely divided Fe catalyst |
| What would you expect of a S2O8/iodide in presence of starch recation if Fe catalyst is added? | Blue-black solution forms much more quickly |
| What are species in their highest [O] likely to form? | Strong [OA] |
| What is a complex ion? | Ion w/ molecule(s)/anions attached to central metal ion via coordinate bonds |
| What is a ligand? | Any molecule or ion that can donate a pair of electrons to a central metal ion DOESN'T have to be lone |
| What is coordination number? | Number of coordinate bonds attached to that metal ion |
| Draw oxalate ion | o=c(o-)-c(o-)=o |
| Are complex ions only D-block? | No, Aluminium can form complex ions |
| Bond shape of 6-coordinate complexes | octahedral, 90' |
| Bond shape of 4-coordinate complexes | Tetrahedral/Square planar, 109.5'/90' |
| Draw tetrahedral/square planar | eh |
| What elements can form square planar? | T.E. ions w/ 8-d electrons in highest E d-orbital shell Pt2+/Pd2+/Au3+ also included |
| What is the formula of a compound of Chromium+4 water+2 chloride ions | [Cr(H2O)4Cl2]+ |
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