Write main points showing anomalous behavior of Lithium.
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Anomalous behaviour of lithium with respect to other alkali metals: The melting point and boiling point of lithium are higher that than other alkali metals. The hardness of lithium is higher than other metals. Lithium nitrate decomposes to form an oxide whereas other metals on heating give nitrites.
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Group 1 elements in the periodic table are the Alkali Metals. The first element of group 1 is lithium. So, why does it behave so differently? Well, the small size of the element is the reason for its anomalous behaviour!
Lithium is extremely electropositive in nature. This is the reason why it can form covalent bonds. The polarization behaviour of its ion somewhat in the same lines as magnesium ion. Therefore, there exists a diagonal relationship between magnesium and lithium. There are a number of reasons why this diagonal relationship exists between them
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