What is the specific heat of a 93g steel table contains 1124J of heat energy as its temperature drops 25C?
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The radius of a nucleus of hydrogen is approximately 
, while we can use the Borh radius as the distance of an electron from the nucleus in a hydrogen atom: 
The radius of a dime is approximately
: if we assume that the radius of the nucleus is exactly this value, then we can find how far is the electron by using the proportion
from which we find
So, if the nucleus had the size of a dime, we would find the electron approximately 500 meters away.
The radius of a dime is approximately
from which we find
So, if the nucleus had the size of a dime, we would find the electron approximately 500 meters away.