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 nucleus is the centre of an atom. It is made up of nucleons (protons and neutrons) and is surrounded by the electron cloud. The size (diameter) of the nucleus is between 1.6 fm (10 â15 m) (for a proton in light hydrogen) to about 15 fm (for the heaviest atoms, such as uranium).t is made up of nucleons (protons and neutrons) and is surrounded by the electron cloud. The size (diameter) of the nucleus is between 1.6 fm (10 â15 m) (for a proton in light hydrogen) to about 15 fm (for the heaviest atoms, such as uranium).