- Created by: pladoo
- Created on: 21-10-19 14:46
Periodic table - Topic 4
Mendeleev’s Periodic table
Mendeleev arranged his table by Atomic mass and by physical and chemical properties, aside from the older table based on strict atomic mass.
Group 1 -> Alkali Metals
Contains: Lithium, sodium, potassium, rubidium, caesium and francium.
When observed you can see: floating, fizzes
Lithium: red Sodium: orange Potassium: lilac
- Shiny (when cut)
- Low melting point
- Good Conductor
- Low Density
- More reactive as it goes down the table
They are stored under oil to stop them from reacting with oxygen to form an oxide layer (tarnish).
Lithium + oxygen -> Lithium oxide
4li + O2 ->2Li2O
Transition metals are the block of the element is located between group 2 and group 3 of the periodic table.
Transition metals can…