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Consider the third period of the periodic table. Which element has the smallest atomic radius? A) argon B) scandium C) silicon D) sodium

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lilaipo
The answer is Argon.  In the third period of the periodic table, the element which has the smallest atomic radius is Argon.has 71 pm.  Scandium has 184 pm, Silicon has 111 pm and Sodium has 190 pm.  
i1nizam1i

Answer:

The answer is: (A) - Argon

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