Binary Molecular Compounds A. Write the correct name for each compound below. Use prefixes to indicate the number of atoms of each element in the name of the molecular compound. (Remember: The prefix \"mono-\" is not used with the name of the first element.) 1 atom: mono 3 atoms: tri- 5 atoms: penta 7 atoms: hepta 9 atoms: nona- 4 atoms: tetra- 6 atoms: hexa 8 atoms: octa 10 atoms: deca- 2 atoms: di- 1) BrCl 2) BN 4) NI 5) SF 6) XeF 7) PCIs 9) PCls 10) P:O 11) S Cl 12) ICh 13) NH 14) P.O1 S HO 16) OF continued... 24 Copyright 0 2004 Pearson Education Canada Inc Solution Writing the name is quite easy. The atom/element written first will be named first and then the second type of atom. 1. Bromine trichloride 2. Boron nitride 3. In this case since there are 2 N so, dinitrogen and 3 O so trioxide So, the name is dinitrogen trioxide 4. Nitrogen triiodide 5. Sulfur hexafluoride 8.CH4 In this case the C is written first and then H. This means here H is electronegative and hence it will be written as hydride. So the name is carbon tetrahydride. 15. H2O In this case the H is written first so it will be written as hydrogen and oxygen being more electronegative will be written as oxide. So the name of the compound is dihydrogen monoxide. 16. OF2 In this case the O is written first so it will be written as oxygen and F being more electronegative will be written as fluoride and name of the compound will be oxygen difluoride .