Onic bonds are formed between metal and nonmetal elements. Potassium has only one valence electron and it is stripped away in the process of forming an ionic bond. Nonmetals, such as chlorine, tend to gain valence electrons in the formation of ionic bonds.
Determine which element(s) are likely to have their electrons stripped away in the formation of ionic bonds.
I) aluminum
II) sulfur
III) oxygen
IV) silver
V) neon