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Hydrogen atoms have a neutral charge, containing a single proton with a positive charge and a single electron with a negative charge. Unlike all other elements, hydrogen atoms contain no neutrons. More »

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A hydrogen atom has one electron. The hydrogen atom is simply made up of one electron and one proton that are bound together by an electromagnetic force. More »

www.reference.com Science Chemistry Atoms & Molecules

In kilograms, the mass of a hydrogen atom is 1.67 times 10 to the power of negative 27 or 1.67 x 10-24 grams. That conversion is based on one atomic measurement unit of atomic mass for an atom of hydrogen. More »

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Ions are positively or negatively charged particles that form as a result of an atom losing an electron or gaining a proton. Ions form when metals react with nonmetals and exchange protons or electrons. In an ionized par... More »

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The three particles of the atom are the proton, neutron and electron. The proton and neutron both reside in the nucleus of the atom and are positively charged and neutral, respectively. The electron is outside the nucleu... More »

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An electron is a negatively charged sub-atomic particle that is located in an atom along with protons and neutrons. The electrons are found in shells and sub-orbitals that surround the nucleus of the atom. More »

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The atomic radius of an atom is determined by the total number of electrons, electron shells and protons in an atom. Protons are located in the nucleus of an atom and create an effective nuclear charge. Electrons within ... More »

www.reference.com Science Chemistry Atoms & Molecules