1. ICLCS Monday, June 25, 2007 ©2011 University of Illinois Board of Trustees http://islcs.ncsa.illinois.edu/copyright

2. Naming covalent compounds, non-metal and non-metal elements. Yellow and Green elements. Naming covalent compounds, non-metal and non-metal elements. Yellow and Green elements. ©2011 University of Illinois Board of Trustees http://islcs.ncsa.illinois.edu/copyright

3. More electronegative element is treated as if it is an anion and has an –ide suffix. (Ending) More electronegative element is treated as if it is an anion and has an –ide suffix. (Ending) First element is named as if it is an element. First element is named as if it is an element. Prefix is added to state the number of elements present. For first element, one is understood. Prefix is added to state the number of elements present. For first element, one is understood. ©2011 University of Illinois Board of Trustees http://islcs.ncsa.illinois.edu/copyright

4. Mono- Mono- Carbon monoxide (CO) Carbon monoxide (CO) Di- Di- Carbon dioxide (CO 2 ) Carbon dioxide (CO 2 ) ©2011 University of Illinois Board of Trustees http://islcs.ncsa.illinois.edu/copyright

5. Tri- Tri- Iodine trichloride (ICl 3 ) Iodine trichloride (ICl 3 ) Tetra- Tetra- Carbon tetrachloride (CCl 4 ) Carbon tetrachloride (CCl 4 ) ©2011 University of Illinois Board of Trustees http://islcs.ncsa.illinois.edu/copyright

6. Penta- Penta- Phosphorus pentachloride Phosphorus pentachloride (PCl 5 ) Hexa- Hexa- Silicon hexaboride Silicon hexaboride (SiB 6 ) ©2011 University of Illinois Board of Trustees http://islcs.ncsa.illinois.edu/copyright

7. What is the name for What is the name for P2I4?P2I4?P2I4?P2I4? Diphosphorus tetraiodide Diphosphorus tetraiodide ©2011 University of Illinois Board of Trustees http://islcs.ncsa.illinois.edu/copyright