Which of the following is a typical element?
Correct answer: B. Na
- A. Li
- B. Na
- C. F
- D. N
Explanation
Sodium (Na) is considered a typical element because it is a part of the alkali metals in Group 1 of the periodic table. This group showcases properties and trends that are consistent across the periodic table, making sodium representative of these trends. Lithium (Li), while also an alkali metal, has some unique properties that differentiate it from the typical behavior seen in sodium. Fluorine (F) and Nitrogen (N), on the other hand, belong to different groups with distinct properties and are not typically used to illustrate general periodic trends.
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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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