By Mark Bishop
Very minor bent corners and symmetrical dents on back and front disguise edges. Very mild, virtually un-noticeable indentation at the left heart of entrance hide.
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A chemist looks at a substance such as gold and visualizes the internal structure responsible for those external characteristics. 1 and continue in our quest to visualize the particle nature of matter. 1, we pictured gases as independent spherical particles moving in straightline paths in a container that is mostly empty space. This image is most accurate for the noble gases (He, Ne, Ar, Kr, Xe, and Rn): each noble gas particle consists of a single atom. 12). 14 Molecular Models 4QBDFmMMJOHNPEFM &NQIBTJ[FT JOEJWJEVBMBUPNT #BMMBOETUJDLNPEFM &NQIBTJ[FTCPOE The particles in hydrogen gas are quite different.
Some of them are gases at room temperature and pressure, some are solids, and one is a liquid. They have different colors and different textures. The definitive quality shared by all nonmetals is that they do not have the characteristics mentioned above for metals. For example, sulfur is a dull yellow solid that does not conduct heat or electric currents well and is not malleable. It shatters into pieces when hit with a hammer. Objective 14 43 44 Chapter 2 The Structure of Matter and the Chemical Elements 4VMGVSJTCSJUUMF
JUTIBUUFSTJOUPNBOZQJFDFT GBSSJHIU (PME
JT NBMMFBCMFJUDBOCFIBNNFSFE JOUPUIJOTIFFUT GBSSJHIU A few of the elements have some but not all of the characteristics of metals.
105 b. 106 Objective 6 Objective 10 Objective 14 Objective 4 Objective 6 Objective 14 Objective 8 Objective 9 c. 10 -5 d. 10 -6 21. Complete the following relationships between units. a. _____ m = 1 km b. _____ L = 1 mL c. _____ g = 1 Mg d. _____ cm3 = 1 mL e. _____ kg = 1 t (t = metric ton) 22. Complete the following relationships between units. a. _____ g = 1 Gg b. _____ L = 1 μL c. _____ m = 1 nm d. _____ L = 1 m3 e. _____ Mg = 1 t (t = metric ton) 23. Would each of the following distances be closest to a millimeter, a centimeter, a meter, or a kilometer?
An introduction to chemistry by Mark Bishop