Ionic Compounds Formula to Name

The Language of Chemistry Chemistry has a language all of its own Chemistry English Element Symbols Letters Chemical Formulas Words Chemical Equations Sentences Each element symbol starts with a capital letter

Binary Ionic compounds The first type of compound is the binary ionic compound

Definitions Ionic bond- bond formed by attraction between + and - ions Binary Ionic Compound- compound containing two elements—one metal and one non-metal + Cation - Anion Ionic Compound

Metals & Non-Metals Ionic Bonds are between metals & non-metals H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Lr Rf Db Sg Bh Hs Mt Uun Uuu Uub Uut Metals Metalloids Non-metals

Identifying & Naming Binary Ionic These compounds have: 2 elements (“binary”) A metal & a non-metal (“ionic”) To name these compounds: Write the name of the metal (the cation) Write the name of the non-metal (the anion) with the suffix “-ide” The subscripts in the formula do not matter when naming this type

Example #1 NaCl

NaCl Example #1 Sodium Chloride Cation Anion “Sodium” “Chlorine” becomes “Chloride” Sodium Chloride

Example #2 CaBr2

CaBr2 Example #2 Calcium Bromide Cation Anion “Calcium” “Bromine” becomes “Bromide” Calcium Bromide

Example #3 K2O

K2O Example #3 Potassium Oxide Cation Anion “Potassium” “Oxygen” becomes “Oxide” Potassium Oxide

Write the name for the following compounds Let’s Practice CaF2 Na3P NaCl SrBr2 Example: Write the name for the following compounds

Write the name for the following compounds Let’s Practice CaF2 Na3P NaCl SrBr2 Calcium fluoride Sodium phosphide Sodium chloride Strontium bromide Example: Write the name for the following compounds

Binary Ionic Compounds Name to Formula

Definitions Ionic bond- bond formed by attraction between + and - ions Binary Ionic Compound- compound containing two elements—one metal and one non-metal + Cation - Anion Ionic Compound

Metals & Non-Metals Ionic Bonds are between metals & non-metals H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Lr Rf Db Sg Bh Hs Mt Uun Uuu Uub Uut Metals Metalloids Non-metals

Identifying & Naming Binary Ionic These compounds: End in “-ide” (except “hydroxide and cyanide”) Do NOT contain covalent prefixes To write these formulas: Write the symbol & charge of the first element (the metal, cation) Write the symbol & charge of the second element (the non-metal, anion) Add more of the cations and/or anions to have a neutral compound Use subscripts to show how many of each type of ion is there.

Example #1 Sodium chloride

Example #1 Na+1 Cation Sodium chloride Anion Cl-1 NaCl

NaCl Example #1 Sodium chloride Cation Anion Na+1 Na+1Cl-1 +1 + -1 = 0 The compound is neutral…no subscripts are needed. Cl-1 NaCl

Example #2 Calcium bromide

Example #2 Ca+2 Cation Calcium bromide Anion Br-1

CaBr2 Example #2 Calcium bromide Cation Anion Ca+2 Ca+2Br-1 +2 + -1 = +1 Anion Ca+2Br-1Br-1 Br-1 +2 + -1 + -1 = 0 CaBr2 The subscript “2” is used to show that 2 anions are needed.

Write the following chemical formulas Let’s Practice Cesium chloride Potassium oxide Calcium sulfide Lithium nitride Example: Write the following chemical formulas

Write the following chemical formulas Let’s Practice Cesium chloride Potassium oxide Calcium sulfide Lithium nitride CsCl K2O CaS Li3N Example: Write the following chemical formulas