A mole is the number of atoms that have a mass of 1 gram of hydrogen (single atoms, not H2). It is not arbitrary. Comparitively, the periodic table has on it the atomic mass of each element. You'll note that the atomic mass of hydrogen is not exactly 1 gram/mole, I think this is due to more...
Homework Statement
Could you confirm or refute these ideas?
1) All fields start from a point charge.
2) We tend to measure the sum of fields from groups of point charges.
3) The inverse square portion of the field strength of a point charge is based on the geometry of the surface area of a...