Number of Ions Present in NaCl (Sodium chloride)

To determine the number of ions in NaCl you need to recognize the we have an ionic compound. This is because Na is a metal and Cl is a non-metal and there is a large difference in the electronegativity values for Na and Cl. For Sodium chloride (NaCl) there is one Sodium ion, Na+ and there is one Chloride ion, Cl-. So there are a total of two ions for one formula unit of NaCl. Helpful Resources: Finding Charge on Ions:    • Figuring out the Charge on Ions   Types of Compounds:    • How to Identify Different Types of Ch...   If you were given one mole of NaCl you would have 1 mole of Na+ ions and 1 mole of Cl- ions. Likewise if you were given something like, 0.43 mole of NaCl you would have 1 x 0.43 mol of Na+ ions and 1 x 0.43 mol of Cl- ions. If you were given grams and asked to find the number of ions in a certain amount of Grams of NaCl you could need to convert the grams to moles first.