The atomic radius of a beryllium atom is 111 pm. Express this distance in inches.

Name: The atomic radius of a beryllium atom is 111 pm. Express this distance in inches.
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Question

Quizplus · Accepted Answer

We first convert the given atomic radius of 111 pm to inches:
1 pm = 1×10^-12 m (conversion factor)
1 m = 39.37 inch (conversion factor)
Therefore, 111 pm = (111×10^-12 m) × (39.37 inch/m) = 4.37×10^-9 inch
The only choice that matches this result is B: 4.37×10^-9 inch = 4.37×10^-1×10^-8 inch = 4.37×10^-1 nm or 43.7 pm

The Atomic Radius of a Beryllium Atom Is 111 Pm