6. Ionisation Energies
This Study Mind Tutorial covers the following specification points:
CIE: 1.4.1 - 1.4.8
1.4.1. understand reasons for the trend in ionisation energy down Group 2
1.4.2. understand reasons for the trend in reactivity of the Group 2 elements down the group
1.4.3. know the reactions of the elements Mg to Ba in Group 2 with oxygen, chlorine and water
1.4.4. know the reactions of the oxides of Group 2 elements with water and dilute acid, and their hydroxides with dilute acid
1.4.5. know the trends in solubility of the hydroxides and sulfates of Group 2 elements
1.4.6. understand reasons for the trends in thermal stability of the nitrates and the carbonates of the elements in Groups 1 and 2 in terms of the size and charge of the cations involved
1.4.7. understand the formation of characteristic flame colours by Group 1 and 2 compounds in terms of electron transitions Students will be expected to know the flame colours for Groups 1 and 2 compounds.
1.4.8. understand experimental procedures to show:
(i) patterns in thermal decomposition of Group 1 and 2 nitrates and carbonates
(ii) flame colours in compounds of Group 1 and 2 elements