Which of the following elements reacts only with nitrogen and carbon?
Correct answer: A. Li
- A. Li
- B. Na
- C. K
- D. Cs
Explanation
The element that reacts only with nitrogen and carbon is lithium (Li). It forms specific compounds with these elements, distinguishing it from sodium, potassium, and cesium, which can also react with additional substances. Lithium's unique reactivity pattern makes it the correct choice in this context.
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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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