Why are group 1 elements called alkali metals
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Why group 1 elements called alkali metals
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The elements lithium, sodium, potassium, rubidium, caesium and francium occupy group IA of the periodic table and are called alkali metals. They have the tendency to lose an electron to complete their octet so they are strongly electropositive and very reactive in nature,
They are called ‘alkali’ metals because they form strong alkaline hydroxides(basic in nature),
The elements beryllium, magnesium, calcium, strontium, barium and radium occupy group IIA of the periodic table. They have a slightly lesser tendency to lose their 2 valence electrons as compared to group 1 elements but are still electropositive and reactive in nature. They form basic oxides which react with water to form insoluble hydroxides,
‘Earth’ is a term applied to substances that are insoluble in water and stable to heating, also the properties of their oxides. Hence, the term ‘alkali earths’ is used to describe these elements
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