Group 2: Alkaline Earth Metals. Full Topic Walkthrough 00:00 Links to Practical Assessments 00:36 Atomic Radius pattern 01:28 First Ionisation Energy pattern 03:12 Melting Point 04:27 Melting Point down Group 2 05:12 Group 2 Reactivity 06:38 Group 2 Metals + Water 09:03 Solubility of Hydroxides 10:55 Solibility of sulfates 13:12 uses of Group 2 metals