What you’ll learn2 learning objectivesChoose one objective for a focused lesson, or study the complete topic.8.2.1Group I alkali metals, lithium, sodium• Describe Group I alkali metals, lithium, sodium and potassium, as relatively soft metals with general trends down the group, (a) decreasing melting point (b) increasing density (c) increasing reactivitySyllabus objective8.2.2Predict the properties of other• Predict the properties of other elements in Group I, given information about the elementsSyllabus objective