Atom (Greek: άτομον; in English: Atom) is the basic unit of matter consisting of a portion of the nucleus is very dense in the Center. Surrounded by a fog of electrons that have a charge group delete. Atomic nucleus consists of a Proton to a neutron, which is prachubuak with a medium power (except in the case of hydrogen-1, which is the only type of stable nuclide with no neutron) The electrons of the atoms are attracted to the nucleus by the electromagnetic force. Similarly, A group of atoms can attract and formation as a molecule. The atomic number of protons and electrons that are equal, there will be an electrical condition. Otherwise, it might have a positive charge (because of the missing electron) or delete (because it has excess electrons) is called ion our assortment of proton and neutron and atomic number that is in the nucleus. The number of protons defines the type of the chemical element and the number of the isotopes of the element type to indicate a neutron.
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