Confusing with Ionic Charges: Lewis symbols represent neutral atoms. If you're dealing with ions, you'll need to add or remove dots accordingly and indicate the charge. For example, Na+ would have no ...
The formula Hâ‚‚O shows that water is made from two atoms of hydrogen (H) bonded to one atom of oxygen (O). Katie: Time for some science. And today it's a chemistry classic, the periodic table. And here ...
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