Transition metals

what is the bond angle and the coordination number of: linear
180, CN=2
1 of 13
what is the bond angle and the coordination number of: tetrahedral
109.5, CN=4
2 of 13
what is the bond angle and the coordination number of: octahedral
90, CN=6
3 of 13
what is the bond angle and the coordination number of: square planar
90, CN=4 (bigger ligands take this shape over tetrahedral)
4 of 13
what is the definition of a complex?
a central metal ion surrounded by ligands forming coordinate bonds with this ion
5 of 13
What factors of complexes affect the colour?
Size/type of the ligands - coordination number - strength of the bond - complex shape - oxidation state
6 of 13
what is the definition of amphoteric?
a molecule that can act as an acid and a base- eg. chromium
7 of 13
as the stability constant increases what does this mean?
K stab - more stable as it increases and it is more easily formed
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What has occurred to the transition metal when a solution turns acidic?
reduction
9 of 13
what has occurred to the transition metal when a solution turns alkaline?
oxidation
10 of 13
What is catalysis?
Where the metal is held in a position of favour which increases probability of collisions.
11 of 13
what is the definition of autocatalysis?
where one of the products that is made during the reaction then acts as the catalyst.
12 of 13
what happens when a transition metal is dissolved in water?
turns acidic as H+ ions are released
13 of 13

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Card 2

Front

what is the bond angle and the coordination number of: tetrahedral

Back

109.5, CN=4

Card 3

Front

what is the bond angle and the coordination number of: octahedral

Back

Preview of the front of card 3

Card 4

Front

what is the bond angle and the coordination number of: square planar

Back

Preview of the front of card 4

Card 5

Front

what is the definition of a complex?

Back

Preview of the front of card 5
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