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Anonymous
Anonymous asked in Science & MathematicsChemistry · 3 months ago

can someone help with this please?

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  • david
    Lv 7
    3 months ago

    Ca(2+)    .....    F(-)

    CaF2  <<<  2 is a subscript

    I can't draw a diagram on screen

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  • 3 months ago

    Because Ca is in the 2nd column of the periodic table, it will lose 2 electrons and its ion will be Ca2+. Because F is in the next to the right column, it will gain one electron to form F-.

    The compound will be CaF2 so that the two positive charges are neutralized by 2 F- ions.

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