When a stronger affinity for this element is needed, the chelating agent EGTA is used (-5[1])instead of EDTA. (10[1])Silicates of this element are sintered together to form the clinker used to make Portland cement. (10[1])Palladium deposited on a compound of this metal makes up (-5[1])a Lindlar catalyst. (-5[4])This element (-5[2])produces (-5[1])an orange-red color in (-5[1])the flame test. (-5[4])Ions of magnesium (-5[1])and (-5[2])this metal (-5[2])are prevalent in hard water. (10[2]-5[2])Quicklime (10[5]-5[1])is the (10[3])oxide (10[1]-5[1])of this (10[1])element, (10[6]-5[1])while (10[2])slaked lime (10[3])is its hydroxide. (10[3])This element’s (10[1]-5[1])sulfate makes up the mineral gypsum (-5[1])and its (10[1])carbonate makes up limestone. (10[5])For 10 (-5[1])points, (10[1])name this alkaline (10[1])earth (10[1])metal (10[1])found in teeth (10[1])and bones. (10[5])■END■ (10[16])