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Definition
| Can change its structure two directions, e.g. BCC to FCC or FCC to BCC |
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Term
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Definition
| A solid with a non-crystalline or non-geometric structure. Amorphous solids have no definite form. |
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Term
| Periodic Table of the Elements |
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Definition
| A table that provides basic information about the elements. Rows are organized by the number of Electron shells. Columns are organized by the amount of valence electrons. |
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Term
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Definition
| The number of protons in the nucleus of an atom. |
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Definition
| Rows in the periodic table. |
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Term
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Definition
| Columns in the periodic table. |
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Term
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Definition
| Subatomic particle with no electrical charge. |
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Term
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Definition
| Positively charged subatomic particle. |
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Term
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Definition
| Equal to the sum of the number of protons and neutrons in the atom. |
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Term
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Definition
| The average weight of all the isotopes of the element. |
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Definition
| 1/12 the mass of Carbon 12. |
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Term
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Definition
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Term
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Definition
| The mass in grams of the relative molar mass of an element. |
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Term
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Definition
| Orbits or shells of electrons surrounding the nucleus of an atom. |
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Term
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Definition
| The outermost shell of an atom. |
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Term
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Definition
| A variation in the number of neutrons of a particular element. |
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Term
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Definition
| One atom giving an electron to another atom, resulting in ions of each element. |
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Term
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Definition
| An atom with an unbalanced electrical charge. |
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Term
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Definition
| An atom that loses one electron from its valence shell, positive electrical charge. |
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Term
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Definition
| An atom that acquires additional electrons, negative charge. |
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Term
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Definition
| A material where the molecule's structure determines the properties of the material, rather than the atom. |
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Term
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Definition
| Element with a filled valence shell. |
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Term
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Definition
| Secondary bonds found in plastics and woods, weaker than metal or ceramic bonds. |
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Term
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Definition
| Ordered, three-dimensional geometric patterns that repeat throughout the material. |
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Term
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Definition
| A particular pattern of repeating cells within a crystalline solid. Most common forms are Body Centered Cubic, Face Centered Cubic, and Hexagonal Close Packed. |
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Term
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Definition
| A 3D configuration of unit cells. |
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Term
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Definition
| Can only change its structure one direction. |
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Term
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Definition
| Have 50% or more iron content |
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Term
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Definition
| Have less than 50% iron content |
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Term
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Definition
| Molecular-based materials formed with long chain-like carbon atoms. |
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Term
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Definition
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Term
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Definition
| A plastic that cannot be remelted and reformed after initial processing. |
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Term
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Definition
| A plastic that can be re-melted and re-processed. |
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Term
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Definition
| Can be either crystalline or non-crystalline. Hard, brittle compounds of metallic and non-metallic elements that have high melting temperatures and are chemically inert. |
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Term
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Definition
| Two or more constituent materials combined to produce a mixed material that is useful for specific applications. Consists of a reinforcing materials and a binder. |
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Term
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Definition
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Term
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Definition
| The assembling of materials one atom at a time. |
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Term
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Definition
| Avg size - less than 100 nanometers. Includes nanoparticles, nanoclusters, supramolecular structures, as well as nanocomposites. |
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