The element cesium bears resemblance with________________?
Correct answer: D. None of the above
- A. Ca
- B. Cr
- C. Both of the above
- D. None of the above
Explanation
Cesium is an alkali metal and does not have the characteristic diagonal relationship with calcium or chromium; its closest group resemblance is with the other alkali metals. Therefore neither listed element is a suitable answer. Students may choose a because cesium and calcium are both highly electropositive metals, but general metallic character alone does not establish a periodic resemblance.
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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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