Element with highest atomic radius among
the following is.
11Na
12Mg
15P
17Cl
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francium
As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest......
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Answer:
Sodium (Na) due to least effective nuclear charge in the respective period
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