When an object with an electric charge of −0.720mC is 77.0m from an object with an electric charge of −0.200mC, the force between them has a strength of 0.2183N. Calculate the strength of the force between the two objects if they are 231.m apart. Round your answer to 3 significant digits.

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Atomic Number

Elements are the building blocks of all the matter that exist in the universe. Every element is made up of atoms that have protons, electrons, and a nucleus. In order to know the difference between the elements, an atomic number is used. Every element has its own individual atomic number. The atomic number is a single most important characteristic of an atom.