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27 June, 18:55

Find the formula of calcium and oxygen

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  1. 27 June, 19:48
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    The ionic formula for calcium oxide is simply CaO. The Calcium ion is an Alkaline earth metal and wants to give up the 2 s orbital elections and become a + 2 cation. Oxygen has six valence electrons and is looking to gain two electrons to complete the octet (8) electron count in the valence shell making it a - 2 anion.
  2. 27 June, 22:52
    0
    The formula of calcium and oxygen is CaO.

    The reason why this is the equation is because Calcium is a + 2 cation. Oxygen is - 2. When they are equal, it's like opposite attract; which equals CaO.
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