88 MULTIPLE CHOICE Question 6 In a covalent bond between two atoms with a difference in electronegativity of 0.3, how do the electrons exist? A The electrons are shared equally between the atoms because the difference in electronegativity is less than 04. B The electrons are shared unequally between the atoms because the difference in electronegativity is less than 04. C The electrons are transferred between the atoms because the dif- ference in electronegativity is less than 0.4.

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88 MULTIPLE CHOICE Question 6 In a covalent bond between two atoms with a difference in electronegativity of 0.3, how do the electrons exist? A The electrons are shared equally between the atoms because the difference in electronegativity is less than 04. B The electrons are shared unequally between the atoms because the difference in electronegativity is less than 04. C The electrons are transferred between the atoms because the dif- ference in electronegativity is less than 0.4.

Answer 1

## Step 1In a covalent bond, atoms share electrons. The degree to which the electrons are shared equally or unequally is determined by the difference in electronegativity between the atoms involved.## Step 2Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. The greater the difference in electronegativity, the more unequal the sharing of electrons.## Step 3A difference in electronegativity of 0.3 indicates a small difference. In general, if the difference in electronegativity is less than 0.4, the electrons are shared almost equally between the atoms.## Step 4Therefore, the correct answer is option A: "The electrons are shared equally between the atoms because the difference in electronegativity is less than 0.4."

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