Nomenclature The naming of molecules

What the formula means… What the heck is with all the numbers? Element Symbol Element Quantity Element or Group Symbol Element Quantity Group Quantity

Electronegativity

Round 1 Is there a metal or two nonmetals? o Sharing electrons, or similar atoms o Exchanging electrons, or forming ions

Round 2 - Covalent Are the atoms the same (O 2 ) or are they different (CO 2 )? o Exist paired in nature o Go to 7, make a 7, and don’t forget H o N 2, O 2, F 2, Cl 2, Br 2, I 2, H 2 o Uses prefixes o First element must be >1 for prefix o Second element always gets a prefix

Round 3 – Covalent Rules 1.Name the element 2.Done! 1.Name first element, use prefix if >1 2.Use prefix with second element 3.Add a suffix –ide to second element 4.Done!

Round 4 – Covalent Practice 1.O 2 2.CO 3.I 2 4.P 2 O 2 5.S 3 O 8 1. Oxygen 2.Carbon Monoxide 3.Iodine 4.Diphosphorus Dioxide 5.Trisulfur Octoxide

Round 2 - Ionic Is there two atoms or multiple atoms? o Usually called salts o Includes Cation and Anion o Charges must equal 0 o Complex salts, acids, and bases o Includes Cation and Polyatomic ion o Found in your reference packet o Charges must equal 0

Round 3 – Binary Ionic 1.Alkali, Alkaline Earth metals 2.Aluminum (+3), Zinc (+2), Silver (+1) 1.Multiple cations per element 2.Must calculate charge 3.Represented by a roman numeral 4.Titanium (II) Oxide = TiO Is the cation a regular metal or a transition metal?

Round 4 – Binary Ionic Rules 1.Name the cation 2.Name the anion 3.Add suffix –ide to anion 4.Done! 1.Name the cation 2.Calculate the charge 3.Add roman numeral in parenthesis 4.Name the anion 5.Add suffix –ide to the anion 6.Done!

Round 5 – Binary Ionic Practice 1.NaCl 2.MgO 3.K 2 O 4.MnCl 2 5.Fe 3 N 2 1. Sodium Chloride 2.Magnesium Oxide 3.Potassium Oxide 4.Manganese (II) Chloride 5.Iron (II) Nitride

Round 3 – Polyatomic 1.Alkali, Alkaline Earth metals 2.Aluminum (+3), Zinc (+2), Silver (+1) 1.Multiple cations per element 2.Must calculate charge 3.Represented by a roman numeral 4.Titanium (II) Carbonate = TiCO 3 Is the cation a regular metal or a transition metal?

Round 4 – Polyatomic Rules 1.Name the cation 2.Name the polyatomic ion 3.Done! 1.Name the cation 2.Calculate the charge 3.Add roman numeral in parenthesis 4.Name the polyatomic ion 5.Done!

Round 5 – Polyatomic Practice 1.NaC 2 H 3 O 2 2.MgCO 3 3.K 2 SO 4 4.VPO 4 5.Cu(NO 3 ) 2 1. Sodium Acetate 2.Magnesium Carbonate 3.Potassium Sulfate 4.Vanadium (III) Phosphate 5.Copper (II) Nitrate

Formulas What’s in the name?

Electronegativity

Round 1 Is there a metal or two nonmetals? o Sharing electrons, or similar atoms o Exchanging electrons, or forming ions

Round 2 - Covalent Is there an element or are there prefixes? o Exist paired in nature o Go to 7, make a 7, and don’t forget H o N 2, O 2, F 2, Cl 2, Br 2, I 2, H 2 o Uses prefixes o First element must be >1 for prefix o Second element always gets a prefix

Round 3 – Covalent Rules 1.Write element symbol 2.Add quantity of 2 as subscript 3.Done! 1.Write element symbol 2.Add quantity of 1 st element as subscript if >1 3.Write 2 nd element symbol 4.Add quantity of 2 nd element as subscript 5.Done!

Round 4 – Covalent Practice 1.Hydrogen 2.Dinitrogen Dioxide 3.Fluorine 4.Diphosphorous Decachloride 5.Tetrasulfur Pentoxide 1. H 2 2.N 2 O 2 3.F 2 4.P 2 Cl 10 5.S 4 O 5

Round 2 - Ionic Can I find the name on my reference packet? o Usually ends in –ide o Easily identify two different atoms o Can end in –ide, -ate, or –ite o Found in reference packet o Context clues can give you hints as to what is in the ion (Hydroxide = OH -1 )

Round 3 – Binary Ionic 1.Alkali, Alkaline Earth metals 2.Aluminum (+3), Zinc (+2), Silver (+1) 1.Multiple cations per element 2.Must calculate charge 3.Represented by a roman numeral 4.Titanium (II) Oxide = TiO Is the first element a regular metal or a transition metal?

Round 4 – Binary Ionic Rules 1.Write symbol for first element 2.Write symbol for second element 3.Calculate element quantities using common charges 4.Write quantities for each element as subscripts if >1 5.Done!

Round 5 – Binary Ionic Practice 1.Sodium Chloride 2.Calcium Oxide 3.Potassium Sulfide 4.Manganese (II) Bromide 5.Iron (III) Carbide 1. NaCl 2.CaO 3.K 2 S 4.MnBr 2 5.Fe 4 C 3

Round 3 – Polyatomic 1.Alkali, Alkaline Earth metals 2.Aluminum (+3), Zinc (+2), Silver (+1) 1.Multiple cations per element 2.Must calculate charge 3.Represented by a roman numeral 4.Titanium (II) Carbonate = TiCO 3 Is the first element a regular metal or a transition metal?

Round 4 – Polyatomic Rules 1.Write symbol for first element 2.Write symbols for polyatomic ion 3.Calculate element quantities using common charges 4.Write quantity for 1st element as subscript if >1 5.If polyatomic ion quantity is 1 then you are done! 6.If polyatomic ion is >1 add parenthesis to show more than 1 group and add subscript 7.Done!

Round 5 – Polyatomic Practice 1.Beryllium Sulfate 2.Lithium Permanganate 3.Sodium Acetate 4.Cobalt (IV) Carbonate 5.Copper (II) Phosphate 1. BeSO 4 2.LiMnO 4 3.NaC 2 H 3 O 2 4.Co(CO 3 ) 2 5.Cu 3 (PO4) 2