Homework Help: Chemistry

Posted by Rebecca on Monday, September 17, 2012 at 4:40pm.

The radius of a chromium atom is 125 pm. How many chromium atoms would have to be laid side by side to span a distance of 4.14 mm?

Chemistry - DrBob222, Monday, September 17, 2012 at 4:54pm
Convert 250 pm diameter to mm.

?mm diameter/atom x # atoms = 4.14 mm
Solve for # atoms.

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