3013653
| Questão | Responda |
| Inorganic Chemistry: Group II | Group II elements are all reactive metals. They are good reducing agents. |
| Reducing Power | Down the group, the atomic radius of Group II elements increases and as a result, ionisation energy decreases, i.e. increasing ease of losing electrons by the metal.. The tendency of the metal to be oxidised increases. |
| Flame Colour | |
| Reaction with Water | |
| Thermal Decomposition of the Nitrates, Carbonates and Hydroxides | Down the group, the radius of the metal cation, M2+, increases and its charge density decreases. As a result, the ability of M2+ to polarise the large NO3- anion decreases and the N-O bonds are weakened to a smaller extent. Thermal stability of the nitrates of Group !! elements increases down the group. |
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