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The group two elements consist of Beryllium, Magnesium, Calcium, Strontium, Barium and Radium

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The Uses and Significance of Group 2 Compounds The group two elements consist of Beryllium, Magnesium, Calcium, Strontium, Barium and Radium. These are known as the 'Group Two elements' because of their unique electron division. Each one of these elements, consists of two outer shell electrons. Because of the lack of outer electrons, these elements are highly reactive. Group two electrons have a positive Two charge or +ve. The Group 2 elements are all metals with a shiny, silvery-white colour. The alkaline earth metals are high in the reactivity series of metals, but not as high as the alkali metals of Group 1. These elements are all found in the Earth's crust, but not in the elemental form as they are so reactive. Instead, they are widely distributed in rock structures. The metals of Group 2 are harder and denser than sodium and potassium, and have higher melting points. The chemical properties of Group 2 elements are dominated by the strong reducing power of the metals. ...read more.


Strontium is used as fireworks flares. 90Sr is a radioactive isotope produced by nuclear fallout. 90Sr has the potential for use as lightweight nuclear producing electricity. Strontium is also used; to produce glass for colour television tubes, refining zinc and production in optical materials. Barium is used in paint and more importantly in X-ray diagnostic work. Barium is also a strong contender for glassmaking. Barite is extensively used as a weighting agent in oil rigs. The carbonate form is a rat poison. Radium is limited in its use due to its radioactivity. It is mainly used on self-luminous paints and treatment of conditions such as cancer (now being replaced by 60Co sources). Lime (calcium oxide) and slaked lime (calcium hydroxide) are both used to reduce the acidity of soil on land, they are both faster and stronger acting than limestone powder. They are also used to reduce acidity in lakes and rivers due to acid rain. and to neutralise potentially harmful industrial acid waste including sulphur dioxide in the flue gases of power stations. ...read more.


This is a very good acid neutraliser that has helped reduce the effects of acid rain on agricultural areas and save lake habitants such as fish from death by neutralising the active hazardous acid. Another issue involving the group two elements, are its participation with water. Magnesium Ions are in all water, as we rarely use its purified version. Due to the participation of Magnesium, Carbon dioxide reacts with water to form carbonic acid which at ordinary environmental pH exists mostly as bicarbonate ions. Microscopic marine organisms take this up as carbonates to form calcite skeletons which, over millions of years, have built up lots of limestone deposits. Ground waters, made slightly acidic by CO2 (both that absorbed from the air and from soil bacteria) dissolve the limestone, therefore enduing up with calcium and bicarbonate ions and becoming "hard". All of the above only forms a very small minority of the potential of group two elements, which gives us an indication of the importance and significance that they all posses to one and other and most importantly, to us and the daily industrial procedures carried out. ?? ?? ?? ?? ...read more.

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