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February 19th, 2017, 01:31 PM   #1
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Talking 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?
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February 20th, 2017, 02:09 AM   #2
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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.
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February 20th, 2017, 04:24 AM   #3
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Sorry, I missed this sentence:

Quote:
Originally Posted by Latlum View Post
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
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