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Add electron dots and charges as necessary to show the reaction of carbon and oxygen to form an ionic compound?
The two atoms shown in the equation are CALCIUM and oxygen.
You start off with a neutral calcium atom with a shell of two electrons, a shell of 8 around that, a shell of 8 around that, and a shell containing 2…with no charge.
20 protons + 20 electrons.
You also have an oxygen atom with a shell of 2, and a shell of 6…with no charge.
8 protons + 8 electrons.
Each ionizes to form a calcium ion with 2 electrons removed (from the outer shell), leaving a +2 charge (20 protons, 18 electrons)…
and an oxygen ion with 2 electrons added (to the outer shell), leaving a -2 charge (8 protons, 10 electrons).
Their electrostatic attraction causes them to come together to form an ionic compound of CaO in a crystal lattice.
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