1. The Physical and Chemical properties of the

2. Properties
Melting Point
Density
Electrical Conductivity
Appearance

3. Melting Point / Density
Metal
Melting Points
Density
Scandium
1400oC
3g/cm3
Vanadium
1677oC
4.5g/cm3
Titanium
1917oC
6.1g/cm3
Chromium
1903oC
7.2g/cm3
Manganese
1244oC
7.4g/cm3
Iron
1539oC
7.9g/cm3
Cobalt
1495oC
8.9g/cm3
Nickel
1455oC
Copper
1083oC
Zinc
419oC
7.1g/cm3

4. Electrical Resistivity
Metal
Resistivity (10-8m-1)
Scandium
10.1
Vanadium
8.6
Titanium
3.8
Chromium 34
Manganese
136
Iron
8.9
Cobalt
5.6
Nickel
6.1
Copper
1.56
Zinc
4.2
Glass

5. Appearance
Any thing in common?

6. That’s right They’re metals
HIGH MELTING POINTS
HIGH DENSITY
HARD and SHINEY
ELECTRICAL CONDUCTORS

7. Compounds of transition elements
Appearance
Formulae
Differences with Group 1 compounds

8. Transition metal compounds
Amino copper sulphate
Copper carbonate
Copper sulphate
Nickel Sulphate, Cobalt Chloride
Copper acetate
Compounds of
Chromium
Copper bromide
Copper chloride

9. Compounds of Group 1 metals
Sodium Sulphate
Sodium chloride
Potassium Bromide
Potassium Permanganate (KMnO4)
Potassium Chromium sulphate (KCr(SO4)2)
Sodium carbonate

10. Form Coloured Compounds
All transition metal compounds are coloured
All Group 1 metal compounds are white (The ones that are coloured on previous slide contain transition metals too)

11. Transition metal ions
Transition metals can lose different number of electrons
Each Transition metal forms ions of different charge
Eg V3+, V2+ and Fe3+, Fe2+ and Cu2+, Cu+
Each ion has a different colour.
REMEMBER GROUP 1 metals only form +1 ions.

12. To identify the transition metal ion present
Add Sodium hydroxide
A different coloured solid (precipitate) forms depending on the ion present
If Fe3+ a BROWN ppt of Fe(OH)3 forms
If Fe2+ a GREEN ppt of Fe(OH)2 forms
If Cu2+ a BLUE ppt of Cu(OH)2 forms

13. USES FOR TRANSITION ELEMENTS
Iron in Haber Process
Nickel in hydrogenation of fats
Maganese dioxide in decomposition of hydrogen peroxide
Platinium/Rhodium in Catalytic Converters
Catalysts