2020-10-07T16:25:38+03:00[Europe/Moscow] en true Atom, Atomic number, Chemical change, Chemical reaction, Compound, Electron configuration diagram, Electron shell, electron, Element, Ion, Mixtures, Molecule, Neutron, Periodic Table, Physical change flashcards
Chemistry Definitions

Chemistry Definitions

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  • Atom
    Smallest indivisible particle of an element
  • Atomic number
    An element’s number, determined by how many protons it has
  • Chemical change
    The production of a new substance from a chemical reaction
  • Chemical reaction
    Involves creating new products from the existing reacting chemicals. When a chemical reaction occurs a new substance is always produced.
  • Compound
    Made from a combination of atoms from different elements.
  • Electron configuration diagram
    A model of an atom that shows how the electrons are organized on different shells
  • Electron shell
    a collection of orbiting electrons. Each shell can contain a maximum number of electrons.
  • electron
    sub-atomic particle with a negative charge that orbits the nucleus
  • Element
    a pure substance composed of only one kind of atom
  • Ion
    an atom that has gained or lost electrons and so is no longer neutral
  • Mixtures
    substances made of more than one type of particle mixed together
  • Molecule
    smallest indivisible particle of a compound
  • Neutron
    sub-atomic particle with no charge that lies within the nucleus
  • Periodic Table
    A table listing all the known elements, arranged according to their atomic properties
  • Physical change
    Does not create a new substance. While the substance might change its state, size, shape, temperature, or amount, it still remains the same substance.