Transition Elements Flashcards
All d-block elements are metals except for
Mercury
D-block also known as
Outer transition elements
How many D-block elements?
40
F-block elements also known as
Inner transition elements
Number of F-block elements
28
F-block elements consist of
Lanthanide series and Actinide series
Lanthnide and Actinide series are also known as
Rare earth elements
Elements after Uranium-92 are called
Man-made, artificial, trans-uranic elements
IIIA (D1) is by definition a transition element, _______________. Which element?
but not by properties. Sc
IIB (D9/D10) and IIIA (D1) are called ________. Which element for IB and IIB?
Non typical elements. Cu and Zn
Electronic config of Cr (instead of) and Cu (instead of)?
Cr: 4s1 3d5 instead of 4s2 3d4
Cu: 4s1 3d10 instead of 4s2 3d9
Irregular electronic configuration?
Cu and Cr
Order of strength of orbitals bonds?
C = Completely filled
H = Half filled
P = Partially filled
C-C > C-H > H-H > H-P > P-P
Highest Binding Energy?
Vandium
Binding Energy trend? skip
skip
MP and BP increases until __ . Then ___ increases a little but continues to decrease.
Mn. Fe
When oxidation state large,
Oxidation power high
High oxidation power means
Covalent character high
Acidic character high
Maximum ox state of any d block element
8+
8+ oxidation state in which elements in what molecules
Os and Ru in OsO4 and RuO4
In 3d series ___ is max oxidation state shown by ___
7+ in Mn
___ does not show variable oxidation state. Its ox state is ___
Zn is 2+
Substance attracted by a magnetic field is
Paramagnetic
Paramagnetic elements
Fe Mn Cu
Substance weakly repelled or unaffected by magnetic field is
Diamagnetic
Diamagentic elements
Sc Ti Zn
Substance that can be made into a magnet is
Ferromagnetic
Natural magnet
Fe3O4 (Lodestone)
Fe2+ and Fe3+ are used to catalyse reaction between
Peroxythiosulphide ion and iodide ion
Ethanol —> Acetaldehyde uses which catalyst
Cu
____ used during conversion of SO2 to SO3 in the contact process of H2SO4
V2O3
Alloy steel made up of
Fe <— Cr, Mn, Ni
Brass made up of
Cu <— Zn (20-40%)
Bronze made up of
CU <— Sn (lead)
18 Karat Gold made up of
AU <— Cu
Cast iron made up of how much % of C
4%
Steel is % of C
0.2-2%
Wrought iron is which % of C
0.2%
CuSO4 . 5H2O is the color
Blue
CuSO4 anhydrous is the color
Colorless. Because absorbs IR light (not visible)
Blue elements
Cr, Cu, Co
Green elements
Mn, Fe2+, Ni
Yellow elements
Fe3+
Purple elements
Ti3+
Colorless elements
Sc, Ti4+, Zn
Bidentrate ligands examples
Ethylene diamine and oxalate ion
Tridentrate ligand example
EDTA
