![]() ![]() It is very reactive even with water at room temperature. Moreover these isotopes it also does have radioactive isotopes. Besides having three stable isotopes the most abundant is 24Mg and is found about seventy nine percent on earth. It has electronegativity nearly about 1.31. Magnesium and other group members of magnesium are known as alkaline earth metals. The melting point of magnesium is 650 degrees Celsius which clearly illustrates that it is solid at room temperature. The atomic number twelve of the magnesium shows that it has twelve protons in the nucleus. Magnesium is placed in group 2 of the periodic table of elements and denoted by Mg in period 3. ![]() It is also used to prepare aluminum alloys. One of the most vital use of manganese is in steel industry where it is used as an alloying agent and as well as a deoxidizing agent. One of the most common compound potassium permanganate which is also purplish in colour and is used widely for different experiments and titration processes. It is very hard and brittle when found at room temperature. It is paramagnetic compound and it is due to presence of unpaired electrons. Due to the presence of the d orbital, the atomic size of manganese is 127 pm. It can exist in a wide range of oxidation states from -3 to +7 in compounds. The melting point of manganese is 1246 degrees Celsius. The atomic number of magnesium is 12 with atomic mass 24.305 g/mol. Its normal dose should be 400 to 420mg per day. Its deficiency causes weak bones (osteoporosis), muscle twitches, fatigue, high blood pressure, arrhythmias of heart and even mental retardation. It is useful to cure constipation and also used for sleep. A vital need of magnesium is traced in the heart of living body where it causes contraction. Our body contains 1% magnesium in blood, liver and muscles. Thus, it is widely found in minerals like dolomite is widely found in magnesium product (magnesium carbonate). Obvious from its periodic location, it cannot independently exist in general. It is eighth most abundantly found element on the planet. It is shiny in appearance and grey in colour. Manganese is used as an alloying agent with the metals while magnesium itself is used with minerals and has a wide range of application. This ability of formation of a variety of compounds is reflected by the visually coloured manganese compounds. Also that, manganese, unlike magnesium, can have an ability to form complexes or complex compounds. These are both needed for body functioning. On the contrary, manganese from d block is a transition metal that is indicative of its property of inconsistent or transiting oxidation states (number of bonding electrons). Magnesium that is an s block element has a tendency to lose 2 electrons to stabilize its valence. Found in d block of the periodic table of elements.įound in s block of the periodic table of elements. ![]()
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