How to Find the Ionic Charge for Helium He

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Using a simple, general trend for the ionic charge for elements on the Periodic Table, in this video we find the ionic charge for Helium (He). The periodic table is organized like a chart for ionic charge with elements in many groups having the same charge. • Often in chemistry you’ll use the ionic charge of an element like Helium to figure predict the products of a reaction or write the name or formula for a compound. • We can also look at the electron configuration for an element like Helium to determine the number of valence electrons in the highest energy level. • Note that when we look at the charge on ions, it is important to understand that ions come in pairs. In an ionic compound like NaCl, the Na is a positive ion (Na+) and has transferred/lost an electron to the Chlorine atom which now has an extra electron and is negative (Cl-). We can dissolve NaCl in water and it will split apart into Na+ and Cl-. The electron from the Na is now with the Cl. • ---- Helpful Videos ---- • Finding the Charge on Ion: • Figuring out the Charge on Ions • Introduction to Writing Electron Configurations: • Introduction to Electron Configurations • How to Draw Lewis Structures: • How to Draw Lewis Structures: Five Ea... • Formal Charge Practice Video: • Formal Charge Practice Problems with ... • Finding Valence Electrons (element): • Finding the Number of Valence Electro... • For more help with chemistry visit www.Breslyn.org

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