A tool designed to determine the number of protons, neutrons, and electrons in an atom or ion, given its atomic number, mass number, and charge. For example, inputting the atomic number 8 (Oxygen), a mass number of 16, and a charge of 0, the tool would output 8 protons, 8 neutrons, and 8 electrons.
These computational aids are valuable in chemistry and physics education and research. They provide a quick and accurate method for understanding atomic structure, which is fundamental to understanding the properties of elements and their interactions. Previously, such calculations required manual reference to periodic tables and potentially error-prone arithmetic. These tools streamline the process, improving efficiency and reducing the chance of mistakes.