CHEM 1A Lecture Notes - Lecture 4: Ferrous, Copper(I) Iodide, Hydronium
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CHEM 1A Full Course Notes
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To attain the same number of electrons as the nearest noble gas. The path of least resistance is the most energetically favorable: ex: sodium becomes (cid:1840)+(cid:2869) because it"s easier to lose one than gain 7. Metals tend to lose electrons to get noble gas configuration. Non-metals tend to gain electrons to get noble gas configuration. Groups 1a-3a lose electrons (=to group number) Non-metals gain electrons (= to 8-group number) Anything in red: know the common ions that it will form. Anything in black: transition metals can form multiple types of ions, do not. Molecules: sodium is violently reactive with water, but nacl, or sodium chloride, we eat on a daily basis. Molecules are assemblies of two or more atoms tightly bound together. Completely unique properties from the atoms that make them up (cid:498)package(cid:499) of atoms behaves like a single distinct object. Empirical formula gives only the relative number of atoms in each type of molecule (aka simplest ratio)
