The element having electronic configuration [Kr] 4d10, 4f14, 5s2, 5p6, 5d¹, 6s2 belongs to
Correct answer: C. d-Block
- A. s-Block
- B. p-Block
- C. d-Block
- D. f-Block
Explanation
The given electronic configuration ends with 5d¹, indicating that the last electron is added to the d subshell, which characterizes d-block elements, also known as transition metals. The s-block elements have their last electron in the s subshell, whereas p-block elements have it in the p subshell, and f-block elements have it in the f subshell. Therefore, options A, B, and D are incorrect as they do not match the configuration's highest energy electron placement.
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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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