Polarity of Bonds

<p>Should we treat all covalent bonds between 2 different atoms as polar for the AP exam?</p>

<p>Also, I was about to study molecular orbital theory, but I just checked the AP website, and it is not part of the curriculum, so yipee.</p>

<p>If it's two different atoms, then it will usually be at least somewhat polar. Any specific molecules you were curious about?</p>

<p>If the molecule consists of the atoms of the same element, then the bonds between the atoms are nonpolar covalent. That is usually the only time a bond is nonpolar covalent. If you have two atoms of different elements, then it will be polar. The electronegativity difference range of, I believe, starting at 0.4 indicates a polar bond, and not many atoms, when combined, will have an electronegativity difference less than that.</p>

<p>I'm pretty sure that bonds fall under intermolecular forces, which is on the AP test.</p>

<p>Yeah, not all bonds are intermolecular forces. Covalent bonds are intramolecular. </p>

<p>Are the only nonpolar covalent bonds basically C-C and C-H?</p>

<p>Also, some H-upper period group 6 and 7 elements like Te.</p>

<p>Sorry, I always get those confused. However, intermolecular and intramolecular forces are covered on the test.</p>