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Atoms fill their energy levels by sharing electrons.When atoms share electrons covalent bonds are formed. Neither atom losses an electron or gains an electron. Covalent bonds make the compound more stable. Covalent bonds are not easily broken because of this sharing of electrons. Further, they do not break apart when...

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Atoms fill their energy levels by sharing electrons.When atoms share electrons covalent bonds are formed. Neither atom losses an electron or gains an electron. Covalent bonds make the compound more stable. Covalent bonds are not easily broken because of this sharing of electrons. Further, they do not break apart when placed in water. Hydrogen is an example of a substance that uses covalent bonds. When two hydrogen atoms share an electron a hydrogen molecule is formed.

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