AP BIOLOGY

Detailed explanation-1: -Polar covalent bond is a type of chemical bond where a pair of electrons is unequally shared between two atoms.

Detailed explanation-2: -A polar covalent bond is a covalent bond in which the atoms have an unequal attraction for electrons and so the sharing is unequal. In a polar covalent bond, sometimes simply called a polar bond, the distribution of electrons around the molecule is no longer symmetrical.

Detailed explanation-3: -In a polar covalent bond, the electrons are unequally shared by the atoms and spend more time close to one atom than the other.

Detailed explanation-4: -In a diatomic molecule with two identical atoms, there is no difference in electronegativity, so the bond is nonpolar or pure covalent.

Detailed explanation-5: -Pure covalent are bonds between two elements with identical electronegativities. For these bonds the electrons are perfectly equally shared between the two atoms. Polar covalent bonds form between elements with different electronegativities but those that aren’t large enough that we could call the bonds ionic.