Which of the following shows inert pair effect ?
Correct answer: D. tin
- A. boron
- B. carbon
- C. silicon
- D. tin
Explanation
The inert pair effect becomes stronger down Group 14 because the ns2 electrons are held more tightly and are less available for bonding. Tin shows this effect among the listed elements, while students may choose carbon by incorrectly linking the word inert with the stability of carbon compounds.
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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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