1. Transition elements are metals located between groups 2 and 3 on the periodic table. 2. They have high melting and boiling points and densities compared to group 1 and 2 metals. They are also good conductors of heat and electricity. 3. Examples of transition elements include platinum, gold, nickel, and iron. Platinum and gold are used in jewelry while nickel is used in coins and iron is used for industrial production.

1. Chemistry

2. Transition Elements
The transition elements are the orange metals existing
between group 2 and 3

3. They are hard and strong
solid metals
They are harder than the
They are very good
conductors of heat
(thermal) and electricity
metals in Groups 1 and 2
Physical
Properties
These metals have high
melting and boiling points
(higher than Group 1 and 2
metals)
They have much higher
densities than Group 1 and 2
metals

4. Examples of Transition Elements

5. Platinum
Platinum is a transition metal with an atomic number of
78 and a mass number of 195

6. Gold
Gold is a transition metal with an atomic number of 79 and a
mass number of 197.
Gold is used in Jewelers

7. Nickel
Nickel is a transition metal which has an atomic number of 28 and
a mass number of 59
This is used mostly in making coins

8. Chemical Properties

9. These metals
are less
reactive
They formed
a range of
brightly
colored
compounds
These metals
do not react
quickly with
oxygen and
water
They show
catalytic
activity as
elements and
compounds

10. Iron Use
Iron is used in the industrial production of ammonia
gas

12. Simple ions
•With more than one oxidation
state
Complicated ions
•with high oxidation states

13. Simple Ions
Copper reacts with Oxygen to give Calcium Oxide
Cu+ + O2-
Cu2O
Copper reacts with Sulfate to give Copper Sulfate
Cu+ + SO4CuSO4

14. Simple Ions
Iron reacts with Sulfate to give Iron(II) Sulfate
Fe2+ (Fe (II) ) + SO42FeSO4
Iron reacts with Chlorine to give Iron (III) Chloride
Fe3+ (Fe (III) ) + ClFeCl3

15. Forms
Forms
Complicated Ions
Chromium forms the Dichromate ion
–
Manganese forms the Manganate ion -
Cr2O72MnO4-