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

(a) Group 1 (alkali metals) – lithium, sodium and potassium (Content in blue is not required for Double Award Science)
2.1 understand how the similarities in the reactions of these elements with water provide evidence for their recognition as a family of elements
2.2 understand how the differences between the reactions of these elements with air and water provide evidence for the trend in reactivity in Group 1
2.3 use knowledge of trends in Group 1 to predict the properties of other alkali metals
2.4C explain the trend in reactivity in Group 1 in terms of electronic configurations