Add electron dots and charges as necessary to show the reaction of calcium and oxygen to form an ionic compound. Nuetral Atoms--> Ions Ca+0-->Ca+0
Ca loses 2 electrons to achieve a noble gas electronic configuration, O gains 2 e to also have a noble gas config.
Can you do it based on what he said?
Not really
Well Ca loses 2 electrons so from Ca it becomes \[Ca ^{2+}+2e ^{-}\] O gains 2 electrons \[O+2e ^{-}\] to become \[O ^{2-}\] Now, can you write that in the equation?
Um
So from neutral atoms to ions. I showed you what ions they become :) Just put them on the right side of the equation. I'm not sure what electron dots are though.
The lewis dot structure. It's the number of valence electrons that atom has.
Ah, well, you have the neutral atoms and we gave you the ions. You should be able to do it now.
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