- The elements in Group 1 of the periodic table are known as the alkali metals and have characteristic properties because of the single electron in their outer shell.
- Students should be able to describe the reactions of the first three alkali metals with oxygen, chlorine and water.
- In Group 1, the reactivity of the elements increases going down the group.
- Students should be able to:
explain how properties of the elements in Group 1 depend on the outer shell of electrons of the atoms
predict properties from given trends down the group.
WS 1.2 Use a variety of models such as representational, spatial, descriptive, computational and mathematical to solve problems, make predictions and to develop scientific explanations and understanding of familiar and unfamiliar facts.