Transition metals Flashcards
V2 +
VIOLET
V3 +
GREEN
TI2 +
PURPLE
Ti 3+
PURPLE
VO 2+
BLUE
VO2 +
YELLOW
Cr 3+
VIOLET
BUT IN SOLUTION IS GREEN
Cr2O7 2-
ORANGE
MnO4 -
PURPLE
MnO4 2-
GREEN
Mn 2+
PALE PINK
Fe 2+
PALE GREEN
Fe 3+
YELLOW
Co 2+
PINK
Ni 2+
GREEN
Cu 2+
PALE BLUE
Transition element definition
d-block element that has an incomplete d-subshell as a stable ion
What are the 4 properties of d-block elements
form complex ions
form coloured compounds
good catalysts
have variable oxidation states
Which 2 d-block elements aren’t transition elements and why
Sc 3+ –> no d subshell
Zn2+ –> full d subshell
What are the exceptions of the 4 S subshell - which elements and why
Cr- 3d orbitals will have 1 electron in each orbital to make it more stable
Cu - full d subshell to make it more stable ( takes 1 electron from te 4S subshell
Which 2 catalysts have health issues and what health issues are attached with them
Cu- cause chronic liver damage
Mn - psychiatric problems
Catalyst used in hydrogen production and its oxidation state
Zn + H2SO4 –> ZnSo4 + H2
Cu2+ –> 2+ oxidation state
Catalyst used in hydrogen peroxide decomposition
2H2O2 –> 2H2O + O2
MnO4 –> 4+ oxidation state
state 2 different elements that have variable oxidation states
Fe 3+ and Fe2+
V2+ and V3+
Ligand defintion
molecule or ion that can form a coordinate bond with a central metal ion by donating its lone pairs of electrons
State examples of both monodentate and bidentate ligands
monodentate: H2O, Cl – and NH3
bidentate: NH2CH2CH2NH2
What are optical isomers
Non- super imposable images
3 bidentate ligands
octahedral shape
What’s the significance of cis-platin
evaluate
[Pt(NH3)2(Cl)2]
Bonds to the nitrogen on guanine in a ligand substitution reaction -> displacing the Cl ligand.
It disrupts the DNA and prevents replicating
BUT –> can bind to healthy cells which have negative side effects
