As the atomic radii increase in a group, the bond length will increase due to the decrease in:
Correct answer: A. Effective nuclear charge
- A. Effective nuclear charge
- B. Shells
- C. Electrons
- D. Screening effect
Explanation
As we move down the group, the screening effect, the number of electrons and the number of shells increase. However, the effective nuclear charge decreases due to this and consequently, the bond length increases as the electrons are now held with a weaker force.
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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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