Oxygen does not react with all except_________________?
Correct answer: D. Metals
- A. Alkali
- B. Acid
- C. Water
- D. Metals
Explanation
Oxygen reacts with many metals to form metal oxides, for example 2Mg + O2 -> 2MgO. Water is the likely alternative because oxygen dissolves in it, but simple dissolution is not the same as a chemical reaction with water under ordinary conditions.
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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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