Indicate superoxide in the following
Correct answer: D. RbO2
- A. CaO
- B. BaO2
- C. Na2O2
- D. RbO2
Explanation
Option D is correct. In superoxides oxygen has a charge of -1/2 which is the case in option D. All the rest of the options are normal(-2) or per(-1) oxides.
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About Periodic Properties and Trends
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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