Science

How are valence electrons involved in the formation of a covalent bond?

They gave me the answer as...They are shared with another atom (or atoms).

However, i thought they shared electrons not atoms...it confused me

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  1. Atoms do share electrons, but the answer means that the valence electrons are shared with another atom or atoms.

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  2. It was I that gave you the last response. Please go back and look at what I wrote. You are confusing yourself. Your question was, "How are valence electrons involved in the formation of a covalent bond?" My response was that they (the electrons) were shared with another atom. One atom shares its electrons with another atom. For example, H has a single electron. One atom of H has one electron, another atom of H has a different electron, these two electrons are shared between the two H nuclei to form a H2 molecule. Electrons don't share electrons. Atoms share electrons. I hope this helps.

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  3. i get it...thanks

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  4. Let's see if this will help you visualize what Bob said:

    * = 1 valence electron
    H = Hydrogen

    There are 2 hydrogens atoms:

    H* and H*

    And they (the atoms) form a covalent bond by sharing the electrons:

    H**H --> now each hydrogen is much happier with 2 valence electrons instead of 1 valence electrons after forming the covalent bond.

    In textbook, it is usually written like this H-H with the dash representing a bond (2 SHARED electrons).

    I hope this helps, I wish jiskha have the drawing feature, visualization should help you understand things better.

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  5. I, too, wish the same thing. I have helped out on two or three boards. As far as I know, none of them have anything to "write" on so we can't make diagrams nor anything like that. For four years I tried to get AOL to put in subscripts, superscripts, and a white board but it never happened. What DID happen is that AOL stopped their service.

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  6. Here is another way of showing the H2 molecule.


    H:H
    where the two dots represent the two electrons, one from each atom of H.

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  7. so...the atoms shared electrons at the same time which means it is the definition of covalent bond...right?

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  8. The shared set of electrons is the covalent bond.

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  9. I need help finding out How does genetics benefit medicine?

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