How many calcium atoms can fit between the Earth and the Moon?
The distance from the surface of the Earth to the surface of the Moon is 384.467 km.
If along this distance place the calcium atoms along the line.
Given that the diameter of one calcium atom is 394 pm, then a chain of 975.8 * 10^15 calcium atoms will be obtained along this line.
This is a lot!
If all this amount is taken into account in mass, then this is less than one milligram of calcium.
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