Who is the element that forms normal oxide only
Correct answer: A. Li
- A. Li
- B. Na
- C. K
- D. Rb
Explanation
When Lithium is heated in air it only forms Li2O which is a normal oxide as it contains an O2- ion. On the other hand sodium, potassium and rubidium do not readily form normal oxides when heated in air. They tend to form per and superoxides with charges -1 and -1/2 on oxygen respectively.
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Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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