Covalent Bond _ Chemistry _ Cell Biology

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5 Terms

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Covalent Bond

the sharing of a pair of valence electrons by two atoms. examples include hydrogen, oxygen, water, and methane

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Electronegativity

an atom’s attraction for electrons in a covalent bond. the more electronegativity it is, the more strongly it pulls the shared electrons toward itself

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nonpolar covalent bond

atoms share electrons equally

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polar covalent bond

one atom is more electronegative. atoms do not share electrons equally

unequal sharing electrons cause partial positive or negative charge or each atom or molecule

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