why group 1 elements called alkali metals
Answers
Answered by
58
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
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
Answered by
73
because The group 1 of the periodic table contain six elements namely Lithium(Li), Sodium(Na),Potassium(K),Rubidium(Rb),Cesium(Cs) and Francium(Fr).These metals are called alkali metals because they form alkalies( i.e. strong bases capable of neutralizing acids) when they react with water.
Similar questions