One of the following alkali metals is the most reactive which is that:
Correct answer: A. Cs
- A. Cs
- B. K
- C. Na
- D. Li
Explanation
Cesium (Cs) is the most reactive alkali metal because it has the largest atomic radius and the lowest ionization energy among the alkali metals, making it highly prone to losing its outermost electron and reacting vigorously with other substances.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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