Naming Covalent Compounds

Master naming covalent compounds! Practice prefixes and rules.

Greek Prefixes Match the Greek prefix to its number. Click the box in the table that you would like to fill in and select the correct answer. Greek Prefix Number Mono- 1 Di- 2 Tri- 3 Tetra- 4 Penta- 5 Hexa- 6 Hepta- 7 Octa- 8 Nona- 9 Deca- 10 Rules of Naming Covalent Compounds The element with the lower group number (further to the left on the periodic table) is written first in the name. The element with the higher group number (further to the right on the periodic table) is written second. Rules of Naming Covalent Compounds If both elements are in the same group, the element closer to the bottom of the column is named first. Rules of Naming Covalent Compounds When a compound contains both a halogen and oxygen, the halogen is always written first. Rules of Naming Covalent Compounds The second element uses the root of the element and the suffix –ide. Rules of Naming Covalent Compounds Greek prefixes are used to indicate the number of atoms of each element present. Rules for Naming Covalent Compounds Greek prefixes are used on both elements if there are more than one atom of each element. Naming Covalent Compounds Match the covalent compound to its name. ICl Iodine Monochloride N₂O Dinitrogen Oxide SiF₄ Silicon Tetrafluoride Naming Covalent Compounds Match the covalent compound to its name. CBr₄ Carbon TetraBromide N₂P₃ Dinitorgen Triphosphide PCl₃ Phosphorus Trichloride What is the name of the compound written in the following formula: GeH4? Germanium hydrogen Germanium hydride Germanium Tetrahydrogen Germanium Tetrahydride What is the name of the compound written in the following formula: N2Br4? Nitrogen Tetrabromide Dinitrogen Tetrabromide Dinitrogen bromide Dinitrogen Tetrabromine What is the name of the compound in the following formula: P2S5? Diphosphorus Pentasulfide Phosphorus Pentasulfide Diphosphorus Sulfide Diphosphorus Sulfur What is the name of the compound in the following formula: SeO2? What is the name of the compound in the following formula: NH3? I am not looking for the common name of this compound. What is the name of the compound in the following formula: SiO2? What is the formula for phosphorus triiodide? PI PI₃ P₃I P₃I₃ What is the formula for silicone tetrachloride? Si₄Cl SiCl SiCl₄ Si₄Cl₄ What is the formula for dichlorine heptoxide? ClO₇ Cl₇O₂ ClO Cl₂O₇ What is the formula for carbon monoxide? What is the formula for trisilicone hexodide? What is the formula for sulfur pentafluoride?