CHEM 208 Study Guide - Midterm Guide: Chemical Formula, Bicarbonate, Covalent Bond
17 Feb 2015
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Document Summary
Module 3: the periodic table and naming compounds. Groups (families): vertical columns: similar chemical properties, 1-8 (i) to (vlll) and either letter a or b, a: main-group elements, b: transition elements. Period: horizontal columns: 1-7 (l) to (vll, different chemical properties. Physical states: solid, liquid, gas, metals are solid at 25 degrees celsius (except mercury (hg) which is liquid at 25 degrees celsius, metals lose electro(s) to form cations and the non-metals gain electron(s) to form anions. Elements are classified as metal, non-metals and metalloid (semi-metal) Elements that are the most abundant in living systems and are essential for life: H, na, mg, k, ca, c, n, o, p, s, cl. Elements that only have trace amounts in the living system: Li, v, cr, mo, fe, co, mn, in, cu, zn, cd, b, is, sn, pb, as, se, f and i.
