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Formation of a Chemical Bond

Chemical bonds hold atoms together in molecules. A chemical bond is a strong electrostatic attraction between two or more atoms. It is formed either by transfer of electrons or by sharing of electrons such that each participating atom approaches a near-noble-gas configuration.

A bond formed by transfer of electrons is called anionic bond whereas a bond formed by sharing of electrons is called a covalent bond. A coordinate covalent bond is formed when an electron-rich atom donates a pair of electrons to an electron-deficient atom.  Chemical bonds explain why and how one atom interacts with another atom.  What happens when two hydrogen atoms approach each other to form a covalent bond? List all that apply

1.)  The internuclear distance between two atoms of H is known as the bond order.

2.)  When the two atoms of H approach each other, the electrons attract each other.

3.)  The potential energy required for bond formation is equal in magnitude to the bond-dissociation energy.

4.)  When the hydrogen atoms are far apart, the energy of their interaction is zero.

5.)  When the two atoms of H approach each other, the two nuclei repel each other.

6.)  When the two atoms of H are infinitely far apart, they show positive interactions.

7.)  When the two atoms of H approach each other, each electron is repelled by the other nucleus.

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Posted on October 28, 2013, in Question and tagged , , , , , , , , , , . Bookmark the permalink. 1 Comment.

  1. 1.) Each electron is attracted to the other nucleus.
    2.) The electrons repel each other.
    3.) The two nuclei repel each other.

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