The division of elements into blocks in the modern periodic table is based on:
Correct answer: B. Sub-shell
- A. Shell
- B. Sub-shell
- C. Orbital
- D. All
Explanation
The division of blocks in periodic table are based on subshell it means the valence shell electron are in that subshell Subshell are s,p,d,f
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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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