Lesson Plan: Alkali Metals Chemistry • Second Year of Secondary School
This lesson plan includes the objectives and prerequisites of the lesson teaching students how to describe the compounds and reactivities of alkali metals and trends in their physical and chemical properties.
Objectives
Students will be able to
- recall the position of the alkali metals in the periodic table to better memorize this important group of elements,
- highlight the trends in physical properties of melting point, density, strength, and hardness in group 1 metals,
- recall and balance equations of reactions between alkali metals and oxygen, water, or halogen gases,
- analyze the reactions of the group 1 metals with water to determine the trend in the reactivity of the group 1 metals,
- use the electronic configuration of group 1 metals to explain why the trend in the reactivity of group 1 metals exists,
- analyze information on common group 1 metals to make predictions regarding the reactions and properties of less common group 1 metals at the bottom of the group.
Prerequisites
Students should already be familiar with
- the structure of the modern periodic table,
- simple electronic configurations highlighting valence electrons.
