lone pair - lone pair > lone pair - bond pair > bond pair - bond pair
lone pair - lone pair > bond pair - bond pair > lone pair - bond pair
lone pair - bond pair > bond pair - bond pair > lone pair - lone pair
bond pair - bond pair > lone pair - bond pair > lone pair - lone pair
The decreasing order of the repulsion between electron pairs is lone pair-lone pair > lone pair-bond pair > bond pair-bond pair. This is because lone pairs are more localized and occupy more space than bond pairs, resulting in stronger repulsions.