Consider Hydrogen and Fluorine:
• How many valence electrons does each have?
• How many more electrons are needed to complete the noble gas configuration?
• From a Lewis perspective, why would hydrogen and fluorine make a covalent bond?
• How is formal charge determined?
• How is formal charged used to identify a reasonable Lewis structure?
• Here is the Lewis structure of HF, based on formal charge, is this structure reasonable:
Consider Cl2
• Draw the Lewis symbol for each atom that clearly shows the number of valence electrons.
• How many electrons does each atom need to make a noble gas configuration?
• Using this as a guide, draw the Lewis structure of Cl2
Consider a molecule made from H and S:
• Draw the Lewis symbols for H and S.
• How many bonds should S make to create a noble gas electron configuration?
• How many bonds can H make?
• Using this as a guide, draw the Lewis structure for a compound made from H and S. You can use more than
one of each atom if you need to.
