science vocab finals1

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Anonymous
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302772
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science vocab finals1
Updated:
2015-05-15 11:13:44
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science metals
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science
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  1. element that typically is a hard, shiny solid, is malleable and is a good conductor of heat
    metal
  2. ability of metals and alloys to be drawn through wires
    ductile
  3. ability of metals and alloys to be hammered or rolled into thin sheets
    malleable
  4. elements in groups 3-12 of PT; occur in nature as uncombined elements and and include the iron triad and coinage metals
    transition elements
  5. elements that usually is a gas or brittle solid at room tmp. not malleable, or ductile, poor conductor of heat
    nonmetals
  6. a molecule that consists of 2 atoms of the same room tmp.
    diatomic  molecules
  7. a compound formed when negative ions form an acid combine with positive ions form a base
    salt
  8. the process of a solid changing directly to a vapor without forming a liquid
    sublimation
  9. elements whose outer energy level is complete
    noble gases
  10. element that shares some properties with metals and some with nonmetals
    metalliods
  11. different forms of the same element having different molecular structures
    allotropes
  12. materials having conductivity properties between that of metals and nonmetals, having controlablle conductivity parameters
    semicondutors
  13. chemical shorthand that uses symbols to tell what elements are in a compound and their ratios
    chemical formula
  14. abbreviation used to identify elements on the PT
    chemical symbols
  15. force that holds atoms together in a compound
    chemical bond
  16. charged particle that has either more or fewer electrons then protons
    ion
  17. attraction formed between oppositely charged ions in an ionic compound
    ionic bond
  18. attraction formed between atoms when they share electrons
    covalent bonds
  19. a neutral particle that forms as a result of electrons sharing
    molecule

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