Profit is producer surplus, minus fixed costs. In other words, its price minus variable costs. Profit, however, is price minus total cost. Since fixed cost is never negative, profit will always be less.
The atom is about 10-10 meters (or 10-8 centimeters) in size. This means a row of 108 (or 100,000,000) atoms would stretch a centimeter, about the size of your fingernail. Atoms of different elements are different sizes, but 10-10 m can be thought of as a rough value for any atom.
The masses of other atoms go up to about 200 times this. The nucleus of an atom is about 10 -15 m in size; this means it is about 10 -5 (or 1/100,000) of the size of the whole atom. A good comparison of the nucleus to the atom is like a pea in the middle of a racetrack.(10 -15 m is typical for the smaller nuclei; larger ones go up to about 10 times that.).he masses of other atoms go up to about 200 times this. The nucleus of an atom is about 10 -15 m in size; this means it is about 10 -5 (or 1/100,000) of the size of the whole atom. A good comparison of the nucleus to the atom is like a pea in the middle of a racetrack.