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If an atom has a circumference of 227pm, what is its diameter?
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If an atom has a circumference of 227pm, what is its diameter?

User Saurabh Gour
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circumference = πD = 227 pm
⇒ D = 227/π = 227/3.14 = 72.23 pm

hope it helps!
User Lincecum
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