Magnesium is the 12th element in the periodic table. It is the 8th most abundant element in the world. It burns very brightly. It is used in flares and flash bulbs for candles. It is used to make aluminum foil, and in some welding, and even in baseball catchers mask. When mixed with water it becomes a laxative.
Calcium is the 20th element on the periodic table. It is the 5th most abundant element in the world. Because of its high reactivity it has poor metallic qualities, and is usually used to process other elements. It also makes chalk, marble, lime, and plaster of Paris.
Strontium is the 38th element of the periodic table. Most of it today is used in the picture tubes for televisions. And it is a common product of nuclear explosions.
Barium is the 56th element of the periodic table. It is never found free in nature because it reacts with oxygen. It has many uses when it is made into a compound. It can make fillers for rubber and plastic. It also makes white pigments and glow in the dark materials. Also used to make the clolors in firewroks.
Radium is the 88th element of the periodic table. It is used to make self luminous paint for clocks and watch hands but because of it radioactivity it killed people, and these clock will still glow for thousands of years. It also produces radon which is used to help cure some cancers.
