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Chemistry - Atomic Structure Week 1 Grade 6 Thursday Atomic Structure Atomic number = number of protons Atomic number = number of electrons in a neutral atom (not an ion) Atomic weight - atomic number = number of neutrons Isotopes have non-normal numbers of neutrons, Hydrogen has 0 neutrons! Building Atoms, Element by Element Start with one of the blank atomic diagrams. Add the number of protons, and the number of neutrons. Add the electrons into positions on the shells, innermost shell first. Building Atoms, Element by Element Hydrogen Carbon 1 __p __n 0 6 __p __n 6 Helium 2 __p __n 2
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