Posted by **love** on Tuesday, January 17, 2012 at 10:54pm.

The radius of a lead atom is 175 pm. How many lead atoms would have to be laid side by side to span a distance of 1.58 mm?

- Chemisty -
**DrBob222**, Tuesday, January 17, 2012 at 11:07pm
If the radius is 175 pm then the diameter is 350 pm.

350 pm/atom x # atoms = 1.58E9 pm

Solve for # atoms.

- Chemisty -
**dffdeg**, Wednesday, September 25, 2013 at 10:30pm
20

- Chemisty -
**f**, Tuesday, September 1, 2015 at 10:25pm
df

- Chemisty -
**memo**, Monday, February 1, 2016 at 1:17pm
The radius of a strontium atom is 215 pm. How many strontium atoms would have to be laid side by side to span a distance of 2.56 mm?

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