Beryllium 1) It is used in the manufacture of alloys. Copper-beryllium alloys are used in the preparation of high strength springs. 2) Metallic beryllium is used for making Windows of X- ray tubes. Magnesium 1) It is used to prepare alloy with aluminium , zinc , manganese and tin. 2) Magnesium - aluminium alloy being light in mass are used in construction of … [Read more...] about Uses of Alkaline Earth Metals