Because the H2S molecule is not symmetrical there is a region of unequal sharing. The bent shape means that the top (where the lone pairs of electrons are) is more electronegative. The Hydrogen atoms at the bottom of the structure are then more positive. Therefore, H2S is a polar molecule.
Because the H2S molecule is not symmetrical there is a region of unequal sharing. The bent shape means that the top (where the lone pairs of electrons are) is more electronegative. The Hydrogen atoms at the bottom of the structure are then more positive. Therefore, H2S is a polar molecule.