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Classification of Matter definitions

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  • Matter
    Anything that occupies space and has mass, forming the basis for all substances studied in chemistry.
  • Atom
    The basic functional unit in chemistry, representing the smallest part of an element retaining its properties.
  • Element
    A substance composed of only one kind of atom, often represented by a symbol on the periodic table.
  • Compound
    A substance formed when two or more different elements are chemically bonded together in fixed proportions.
  • Mixture
    A physical combination of elements and/or compounds where each retains its own properties and can be separated.
  • Pure Substance
    A material with a single, unchanging composition, either an element or a compound.
  • Homogeneous Mixture
    A blend of substances with a uniform appearance and composition throughout, such as air.
  • Heterogeneous Mixture
    A combination of substances where different components are visibly distinct, like oil and water.
  • Periodic Table
    A systematic arrangement of elements, each represented by a symbol, used to identify and classify elements.
  • Composition
    The specific makeup or types of substances present in a sample of matter, determining its classification.
  • Chemical Bond
    A force that holds two or more different elements together within a compound.
  • Symbol
    A one- or two-letter abbreviation used to represent an element, such as C for carbon.
  • Uniformity
    The degree to which a mixture appears the same throughout, distinguishing homogeneous from heterogeneous mixtures.
  • Separation
    The process by which components of a mixture can be physically divided due to the absence of chemical bonds.