SELECT * FROM question_mgmt as q WHERE id=225 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=2 AND subId=9 AND chapterId=51 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 11th chemistry The s Block Elements why are alkali metals not found in nature

Question:

Why are alkali metals not found in nature?

Answer:

The alkali earth metals are also called s- block elements because these elements have one electron in the valence s- subshell of their atoms i.e., they have ns1 configuration. The Alkali metals include lithium, sodium, potassium, rubidium, cesium, and francium. They are called alkali metals since they readily dissolves in water to form soluble hydroxides, which are strongly alkaline in nature. Because they have only one electron in valence subshell, therefore they lose easily, owing to their low ionization energies. Therefore, alkali metals are highly reactive chemically and do not exist in free or native state and are not easily found in nature.


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