Symbol of the noble gas closest to the neutral atom
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1 Ionic Bonding Handouts Table #1: Forming Ions Name of neutral atom Total # of electrons metal / nonmetal ymbol of the noble gas closest to the neutral atom Name : Date : # of electrons lost or gained to be isoelectric with a noble gas ymbol of the cation or anion Name of the ion odium (Na) 11 m Ne lose 1 Na 1+ cation Calcium (Ca) 20 m Ar lose 2 Ca 2+ cation Nitrogen (N) 7 nm Ne gain 3 N 3- anion ulfur () 16 nm Ar gain 2 2- anion Hydrogen (anion) 1 nm He gain 1 H 1- anion Carbon (anion) 6 nm Ne gain 4 C 4- anion Carbon (cation) 6 nm He lose 4 C 4+ cation odium Calcium Nitride ulfide Hydride Carbide Carbon
2 Table 2: Lewis Dot Diagrams Neutral Atom Group number # of valence electrons xygen 16 (VI) 6 Aluminum 13 (III) 3 Hydrogen 1 (I) 1 hosphorous 15 (V) 5 Bromine 17 (VII) 7 Lewis dot diagram Al H Br
3 Table 3: Ionic Bonding and Lewis Dot Diagrams Ionic bond between Ionic bond between K and I Mg and K 1+ and I 1- Mg 2+ and 2- Ionic bond between Ca and 3 Ca 2+ and 2 3- K Mg Ca Ca Ca I
4 Table 4: Writing formulas of binary ionic compounds: The Cross ver Method teps Example 1 Calcium fluoride 1. Write the symbols of the elements in the order given in the name Example 2 Gallium arsenide Example 3 Tungsten (IV) sulfide Ca F Ga As W 2. Write the charge above each element. If metal is multivalent, the roman numeral after the name indicates the charge of the metal 3. Crossover the charges. Drop the signs and write them as subscripts Ca 2+ F 1- Ga 3+ As 3- W Ca1 F2 Ga3 As3 W Reduce the subscripts to its lowest form Ca1 F2 Ga1 As1 W Drop any ones in the formula Ca F2 Ga As W 2 6. The formula CaF2 GaAs W2
5 Table 5: Nomenclature of Binary Ionic Compounds: Fill in the table with appropriate metal ion, non-metal ion and the chemical formula of the compound. Name 1 Barium Fluoride Mono/ Multivalent metal Monovalent Metal ion (cation) Nonmetal ion (anion) Chemical formula Ba 2+ F 1- Ba1 F2 BaF2 2 Magnesium phosphide Monovalent Mg2+ 3- Mg32 3 Calcium oxide Monovalent Ca Ca 4 Gold (III) oxide Multivalent Au Au23 5 otassium bromide Monovalent K 1+ Br 1- KBr 6 Beryllium sulfide Monovalent Be Be 7 Aluminum nitride Monovalent Al 3+ N 3- AlN 8 Lead (IV) sulfide Multivalent b b2 9 Lithium nitride Monovalent Li 1+ N 3- Li3N 10 odium sulfide Monovalent Na 1+ 2 Na2 11 Tungsten (VI) oxide Multivalent W W3 12 Calcium fluoride Monovalent Ca 2+ F 1- CaF2
6 Table 6: Naming regular binary Ionic Compounds: Fill in the table with appropriate metal ion, non-metal ion and the chemical name of the compound. Chemical formula Metal ion (cation) Non-metal ion (anion) Name 1 CaCl2 Ca 2+ Cl 1- calcium chloride 2 AlI3 Al 3+ I 1- aluminum iodide 3 Ca32 Ca calcium phosphide 4 Mg Mg magnesium oxide 5 KCl K 1+ Cl 1- potassium chloride 6 Be Be beryllium sufide 7 Ba3N2 Ba 2+ N 3- barium nitride 8 Ga23 Ga gallium sufide 9 Li3 Li lithium phosphide 10 Na2 Na sodium sulfide 11 Ag2 Ag silver oxide 12 CaF2 Ca 2+ F 1- calcium flouride
7 Table 7: Writing names of ionic compounds that contain a multivalent metal teps to follow when writing the chemical name for an ionic compound that contains a multivalent metal:(use paper copy to fill in) teps to follow Example 1 Fe Identify if the metal is multivalent. If Yes then proceed to the next step otherwise just name the compound 2. lace brackets above each element and place an equal sign between them 3. lace the ratio of the ions in the chemical formula (the subscripts) outside the bracket 4. ALWAY place the negative charge (anion) first INIDE the bracket. Calculate the total negative charge Example 2 V 2 5 Example 3 b 2 Yes Yes Yes ( ) = ( ) Fe 3( ) = 2( ) Fe 3( ) = 2(3- )=-6 Fe ( ) = ( ) V 2( ) = 5( ) V 2( ) = 5(2- )=-10 V ( ) = ( ) b 1( ) = 2( ) b 1( ) = 2(2- )=-4 b 5. Calculate the positive charge of the metal. o that the total + charge = total charge +6= 3(2+ ) = 2(3- )=-6 Fe +10= 2(5+) = 5(2-)=-10 V +4= 1(4+ ) = 2(3-)=-4 b 6. The positive charge in the bracket is the charge of the metal ion. Write this charge as a Roman numeral after the name of the metal iron (II) phosphide vandium (V) oxide lead (IV) sulfide
8 Table 8:Nomenclature of Multivalent Binary Ionic Compounds: Fill the table with appropriate metal ion, non-metal ion and the chemical formula of the compound. Chemical Formula Metal Non-metal Calculations Chemical Name AuF Au 1+, 3+ F 1- total ve charge = -1, Gold (I) Fluoride NiTe Ni 2+, 3+ Te 2- total ve charge = -2, Nickel(II) Telluride HgI 2 Hg 1+, 2+ I 1- total ve charge = -2, Mecury (II) Iodide FeF 2 Fe 2+, 3+ F 1- total ve charge = -2, Iron(II) Fluoride V 2e 5 V 5+, 4+ e 2- total ve charge = -10 Vandium (V) elenide Cu 3As Cu 2+, 1+ As 3- total ve charge = -3, Copper (I) Arsenide CoN Co 2+, 3+ N 3- total ve charge = -3, Cobalt (III) Nitride Ti 3 4 Ti 3+, total ve charge = -12, Titanium (IV) hosphide Cr 2e 3 Cr 2+, 3+ e 2- total ve charge = -6, Chromium (III) elenide NiF 3 Ni 2+, 3+ F 1- total ve charge = -3, Nickel (III) Fluoride U 3 U 4+,5+,6+ 2- total ve charge = -6, Uranium (VI) xide n 2 n 2+, total ve charge = -4, Tin (IV) ulfide
9 Table 9: Nomenclature of Binary Ionic Compounds Name the following binary compounds. Not all of these binary compounds are multivalent. Chemical formula Chemical name Chemical formula Chemical name 1 AlCl 3 Aluminum Chloride 7 Cd Cadmium xide 2 CuF Copper (I) Fluoride 8 W 2 Tungsten (VI) hosphide 3 Zr 3N 4 Zirconium Nitride 9 Zn 3N 2 Zinc Nitride 4 CaBr 2 Calcium Bromide 10 AgCl ilver Chloride 5 Mn 2 Manganese (IV) ulfide 11 n 3 4 Tin (IV) hosphide 6 Ni Nickel (III) hosphide 12 CuBr 2 Copper (II) Bromide
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