Which of the following has highest atomic size?
Correct answer: D. Ba
- A. Be
- B. Mg
- C. Ca
- D. Ba
Explanation
Barium has the largest atomic size among the options. It is located in the same group (column) as calcium and magnesium but is further down the group. Moving down a group on the periodic table generally results in an increase in atomic size due to the addition of more energy levels.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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