This type of clothing should not be worn for parties, weddings and other formal or ceremonial events. They should not also be worn for work. Various items of clothing such as tee-shirts, denims, khakis, jackets, hoodies, mini-skirts, summer dresses, loafers, sneakers, and sandals are casual wear.
The presence of a lone pair decreases the bond angle between the bonding pair of electrons, due to their high electric charge which causes great repulsion between the electrons. They are also used in the formation of a dative bond.
The lone pairs of electrons on these highly electronegative atoms have a large partial negative charge, while hydrogens bonded to highly electronegative atoms have a large partial positive charge, allowing the interactions to occur. Source(s): theseeker4 Â· 8 years ago. Thumbs up.