Biology / Bio 0135 · Atom · ~20 seconds
Nonpolar Covalent Bonds
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A nonpolar covalent bond shares electrons evenly between two atoms because both pull on them with about equal strength.
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Two atoms of the same element, as in the hydrogen molecule, pull on their shared electrons equally, leaving neither atom with a partial charge.
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Even similar but non-identical atoms, such as carbon and hydrogen, share closely enough to count as nonpolar in practice.