Well, that is going to depend on a lot of things, like what kind of paper clip, how large it is, etc. But for an example, we'll go with a price I just found on Amazon for 1000 paperclips for $7.63.
At that price, they cost less and one cent each ($0.00763), so if you could really sell single paper clips (which no one really does), then you could make a small profit by selling them for one cent each.
This same brand and size of paper clip is even cheaper if you buy 2,000 or 5,000 at a time. For instance, if you bought the 50 box option (100/box) instead of the 10 box option, it is $15.99, which works out to 0.003198 per paper clip.
It costs at least 500$
5
Most paper clips are made from steel. You could make a paper clip out of copper, but the cost would be higher for something that would do the same job.
A paper clip weighs about 1-1.4 grams, depending on the size.
Well...1 gram. Or, if you are talking about density, than the density of a paper clip is 8.03 g/cm3.
The paper clip was not discovered. It was invented.
The paper clip clings to the the magnet
A red paper clip
There are only one property of a paper clip. The property to a paper clip is the testing.
An average paper clip weighs about 1.4 grams (or 1400 milligrams)
The paper clip inventor is John Vaaler
A metal paper clip will conduct electricity.
The capacity of a paper clip is milligrams positive