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 February 19th, 2017, 12:31 PM #1 Newbie   Joined: Feb 2017 From: Maidstone Posts: 1 Thanks: 0 Atom Calculation too easy? Atoms a) How many hydrogen atoms, which measure 0.1nm across, will fit across a single caesium atom with a diameter of 0.6nm ? b) The diameter of a copper atom is approx 0.3nm. How many copper atoms could be lined up across a pin head measuring 1.5mm (1,500,000nm)? (to convert m to nm multply by 1000,000,000. To convert nm to m divide by 1000,000,000). The diameter of an atom ramges from about 0.025 to 0.5nm I think the answer to a) is 6 hydrogen atoms and b) 5,000,000 copper atoms. But that seems too simple?
 February 20th, 2017, 01:09 AM #2 Senior Member   Joined: Apr 2014 From: Glasgow Posts: 2,115 Thanks: 708 Math Focus: Physics, mathematical modelling, numerical and computational solutions Have you tried these yourself yet? If so, can you post your working out? Hint: you don't need to know any atomic physics to work these problems out... it's a bit like lining up boxes in a warehouse, just on a smaller scale. Thanks from Joppy
February 20th, 2017, 03:24 AM   #3
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Joined: Apr 2014
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Math Focus: Physics, mathematical modelling, numerical and computational solutions
Sorry, I missed this sentence:

Quote:
 Originally Posted by Latlum I think the answer to a) is 6 hydrogen atoms and b) 5,000,000 copper atoms. But that seems too simple?
Those values are fine

 Tags atom, calculation, easy

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