Lesson Plan: Alkali Metals Science • Second Year of Preparatory School
This lesson plan includes the objectives and prerequisites of the lesson teaching students how to identify and name alkali metals, describe their physical properties, and explain their chemical activity.
Objectives
Students will be able to
- identify the location of the alkali metal group on the periodic table,
- identify and name the elements in the alkali metal group,
- know that alkali metals react with water to form alkali solutions (hydroxides),
- state that all the elements of the alkali metal groups contain one electron in their outer shell,
- state that all the elements of the alkali metal group lose one electron to form positive ions with a +1 charge,
- explain that all the elements of the alkali metal group are stored under kerosene (paraffin) because they are very reactive in air,
- know that chemical activity increases when moving down the alkali metal group,
- describe the physical properties of alkali metals and trends down the group.
Prerequisites
Students should already be familiar with
- the periodic table,
- ions.
