The elements within groups of the Periodic Table show physical and chemical trends.
Certain groups such as the alkali metals, halogens and Noble gases can be known by their group name or by their group number.
Match the group to the correct number of outer electrons.
You must only draw one line from each group.
Group 1 elements react with ____________________ to form ____________________ solutions and hydrogen.
☐ | A | They are very reactive | |
☐ | B | They have low melting points | |
☐ | C | They have high densities | |
☐ | D | They are soft |
Lithium + water → lithium hydroxide + hydrogen
Which is the correct balanced chemical equation for the reaction of lithium with water?
☐ | A | Li (s) + H2O (g) → LiOH (aq) + H2 (g) | |
☐ | B | Li (s) + H2O (l) → LiOH (aq) + H2 (g) | |
☐ | C | 2Li (s) + 2H2O (l) → 2LiOH (aq) + H2 (g) | |
☐ | D | 2Li (s) + 2H2O (g) → 2LiOH (aq) + H2 (g) |
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