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  2. Matter - Wikipedia

    en.wikipedia.org/wiki/Matter

    Matter is a general term describing any 'physical substance'. By contrast, mass is not a substance but rather a quantitative property of matter and other substances or systems; various types of mass are defined within physics – including but not limited to rest mass, inertial mass, relativistic mass, mass–energy .

  3. Periodic table - Wikipedia

    en.wikipedia.org/wiki/Periodic_table

    Elements with similar chemical properties generally fall into the same group in the periodic table, although in the f-block, and to some respect in the d-block, the elements in the same period tend to have similar properties, as well.

  4. The Mystery of Matter - Wikipedia

    en.wikipedia.org/wiki/The_Mystery_of_Matter

    The Mystery of Matter. The Mystery of Matter: Search for the Elements is a 2014 American documentary miniseries, [1] [2] [3] which premiered nationwide on August 19, 2015. [4] [5] [6] The PBS documentary, in three-episodes of one hour each, was directed by Stephen Lyons and Muffie Meyer . The series, which took ten years to make, [7] describes ...

  5. Quark - Wikipedia

    en.wikipedia.org/wiki/Quark

    A quark ( / kwɔːrk, kwɑːrk /) is a type of elementary particle and a fundamental constituent of matter. Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei. [1] All commonly observable matter is composed of up quarks, down quarks and electrons. Owing to a phenomenon known as color confinement, quarks ...

  6. List of materials properties - Wikipedia

    en.wikipedia.org/wiki/List_of_materials_properties

    List of materials properties A material property is an intensive property of a material, i.e., a physical property or chemical property that does not depend on the amount of the material. These quantitative properties may be used as a metric by which the benefits of one material versus another can be compared, thereby aiding in materials selection .

  7. Chemical property - Wikipedia

    en.wikipedia.org/wiki/Chemical_property

    Chemical properties can be contrasted with physical properties, which can be discerned without changing the substance's structure. However, for many properties within the scope of physical chemistry, and other disciplines at the boundary between chemistry and physics, the distinction may be a matter of researcher's perspective.

  8. Mass - Wikipedia

    en.wikipedia.org/wiki/Mass

    Mass is an intrinsic property of a body. It was traditionally believed to be related to the quantity of matter in a body, until the discovery of the atom and particle physics. It was found that different atoms and different elementary particles, theoretically with the same amount of matter, have nonetheless different masses. Mass in modern physics has multiple definitions which are ...

  9. State of matter - Wikipedia

    en.wikipedia.org/wiki/State_of_matter

    State of matter. In physics, a state of matter is one of the distinct forms in which matter can exist. Four states of matter are observable in everyday life: solid, liquid, gas, and plasma. Many intermediate states are known to exist, such as liquid crystal, and some states only exist under extreme conditions, such as Bose–Einstein ...

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