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cm1sm 3 s Univssi of Einug cto 24 Jul 201 1558 Louisist o i t2 ios 07 x201cJalBfff ist x201cJfx201cBx201d siso Fm2s nmuoMSo nttM1118ts. brPage 1br Students foun d to be in violation of the dress code will receive a discipline referral Andrew Puddephatt in Foun presentation of fa in these arti in them, whi an the presentation of material in this pu the leountry, territory, the Brasilia Offi70070-912, Bras Names of Common Polyatomic Ions. . Ion Name Ion Name. . NH. 4. . +. ammonium. . CO. 3 . 2-. carbonate. *NO. 2. . -. *nitrite . HCO. 3. . -. Isotopes. Isotopes. : atoms of the same element that have different numbers of neutrons. Two isotopes of an element will have the same atomic number, but different mass numbers (and atomic masses). CARBON (above right). To write the electron configuration of an ion formed by a main group element:. Write the configuration for the atom.. Add or remove the appropriate number of electrons.. Na: 1. s. 2. 2. s. 2. 2. SNC2D. Polyatomic Ions. Polyatomic ions are groups of atoms that tend to stay together and carry an overall ionic charge. The ion is typically held together with covalent bonds. The polyatomic ion is capable of bonding with other ions. vr5t:r + /C ;Th v huC 0, Augut 201/, At: 1/:22 Arthu r  nrohf (19 2nn)C ma-a 9thw I,a-,y St:9tuw 3rot : fr u 4uC fhhC00555*h t+,rt:9tu*-r 0:r90--1 .m Ar Many ions are monoatomic BUT. Most ions are polyatomic (>1 atom). 330.07.01b.Names & Formulas - Polyatomic. There are . five common polyatomic. ions:. nitrate NO. 3. –. carbonate CO. 3. 2– . How elements become charged. How elements become charged. ION – A charged atom. All elements on the periodic table are NEUTRAL because they have the same number of . protons (+) and electrons (-). MACROSCOPIC SCALE. Elements combine to make compounds.. ATOMIC SCALE. Atoms combine to make molecules, or extended structures.. What we’ll cover…. Compound Formulas. Ions. Monatomic. Polyatomic. Ionic Compounds. 2. , is used in the processing and bleaching of pulp from wood fibers and recycled cardboard. .. Learning . Goal . Write the name and formula for an ionic compound containing a polyatomic ion.. Polyatomic Ions. Polyatomic Ions . Tightly bound groups of atoms that behave as a unit and carry a charge.. Ammonium . NH. 4. +. Cyanide. CN. -. Sulfite . SO. 3. 2-. Examples:. Common Polyatomic Ions. with a -1 charge. Valence electrons. Valence electrons. . are . those electrons . that are . lost. . or . gained. . when . elements combine.. Nonmetals. will . gain. electrons . when forming . compounds. They . become . Why do we care about the major ions?. What . is the composition of seawater?. What defines Major Ions? . What are their concentrations?. What are their properties?. Density: . distributions . and . controls (salinity and temperature).