:2Mg + O2 --> 2MgO How many grams of magnesium oxide will be produced if 42.5 grams of magnesium is used? 140.9 g MgO 140.9 g MgO 23.06 g MgO 23.06 g MgO 25.63 g MgO 25.63 g MgO 70.47 g MgO

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each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.