Syllabus Periodicity HL

Homework: Draw a colourful schematic, including equations of both the Contact and the Haber Process

Syllabus

Task One [Study Guide 15/16]

Write out the formulae of the oxides and chlorides of period 3

Each ELEMENT must have its own card.

On the back of the card record :- Physical state Conductivity ( when molten ) Draw the bonded structure of each of the compounds

you predict will be formed.

Include an explanation of the above with reference to bonding.

Reactions of Chlorine with water.

Cl₂ (g) + H₂O (l) → HOCl (aq) + H+ (aq) + Cl- (aq)

http://www.youtube.com/watch?v=Mx5JJWI2aaw

ConsolidationPg. 78 Green, Damji

StarterWrite out the electron conifguration for the first

row of transition elements.

YES you can use noble has notation

Weird after Argon

Formation of Coloured Compounds

Why Coloured Compounds ?

D-orbital splitting

Variable Oxidation State Titanium- +2, +3, +4 Vanadium- +2, +3, +4, +5 Chromium- +2, +3, +6 Manganese- +2, +3, +4, +5, +6, +7 Iron- +2, +3 Cobalt- +2, +3 Nickel- +2, +3, +4 Copper- +1, +2 When Transition Metals form positive ions they

loose their electrons from the 4s sub-shell first, then the 3d sub-shell.

Give electronic structures for the ions in the following: copper(II)oxide, Copper(I)oxide, iron(II)sulphate, Iron(III)chloride, chromium(III)chloride.

LigandTMs have partially filled, and vacant p and d

orbitals.

These can accept a pair of electrons to form a dative covalent bond.

Common examples are…….

Complex Ion Formation

Catalytic Action

Vanadium Pentoxide in Contact process

Fe in Haber process and heme

Ni in alkenes to alkanes

Co in Vit B12

Pd/Pt in catalytic converters

Include Economic significance of catalysts