Group 1 metals 3.5 / 5 based on 2 ratings ? ChemistryChemical patterns and reactivity seriesGCSEAQA Created by: FredaCreated on: 04-05-13 12:23 What are Group 1 metals called? Alkali metals 1 of 6 Why are they called alkali metals? They react with water to produce hydrogen gas and alkaline solutions (hydroxides). 2 of 6 Give 2 properties of Group 1 metals They have a low density. They react with non metals to form ionic compounds 3 of 6 Why do Lithium, Sodium and Potassium float on water? They have a low density; they are less dense than water 4 of 6 As you do down the Group what increases and what decreases? The reactivity of the elements increases. The melting and boiling points decrease. 5 of 6 Why are Rubidium, Cesium and Francium not safe to experiment with in schools? They are too reactive and highly explosive. 6 of 6
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