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electrovalent bond

n.
1.a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains to electron to form a negative ion

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    Idiom of the Day

    take (someone) to the cleaners
    to take or win all of someone`s money, to cheat someone
    The salesman took the woman to the cleaners when he sold her the bad product. The man went to the casino and was taken to the cleaners by the card dealers.



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