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Which element is unreactive and has a greater atomic radius than 1​

User Sempervent
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1 Answer

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Answer:

Atomic radii vary in a predictable way across the periodic table. 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.

User Daniel Abrahamsson
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