Using the symbols d2 and d1, indicate the direction of polarity, if any, in each

Key concept

Electronegativity

Ability of an atom to attract the shared pair of electrons towards it. It is a measure of the force of an atom’s attraction for electrons.

Polarity

Polarity or the bond is a measure of difference in electronegativity between atoms that share it. There are few types of bonds: nonpolar covalent, polar covalent and ionic bonds.

Direction in polar covalent bonds

If a covalent bond is polar, we can determine its direction.

Direction in polar covalent bond goes from less electronegative atom ( more electropositive atom) to more electronegative atom (less electropositive atom).

In other words, direction goes from an atom that has a smaller value of electronegativity to an atom that has bigger value.

Also we mark our atoms with , if an atom is less electronegative, and with if an atom is more electronegative.

Step 1 of 5

In this task we are asked to mark the direction of polarity in each polar covalent bond.

(a)     (b)    (c)    (d)

Polarity or the bond is a measure of difference in electronegativity between atoms that share it. There are few types of bonds: nonpolar covalent, polar covalent and ionic bonds.

The atom with the greater electronegativity has the partial negative charge and the atom with the lesser electronegativity has the partial positive charge.