2aGroup 1 (alkali metals) – lithium, sodium and potassium

Syllabus objectives

• 2.1understand how the similarities in the reactions of these elements with water provide evidence for their recognition as a family of elements
• 2.2understand how the differences between the reactions of these elements with air and water provide evidence for the trend in reactivity in Group 1
• 2.3use knowledge of trends in Group 1 to predict the properties of other alkali metals
• 2.4explain the trend in reactivity in Group 1 in terms of electronic configurationsSeparate Chemistry only