The atoms form positive and negative ions which attract to each other. Ionic compounds are composed of large numbers of positive ions (cations) and negative ions (anions) so that the amount of positive charge equals the negative charge. In covalent bonds the electrons are shared between two bonded atoms.
4. Try doing a gradation of color by selecting a shirt and tie that are the same color, but in lighter or darker shades. For example, pair a light blue dress shirt with a medium blue tie. 5. For business interviews and important meetings, keep your tie color classic and conservative.
White or gray gloves are appropriate. BLACK TIE Less dressy than white tie, but still pretty formal, and usually reserved for evening affairs. â¢ Women: Wear a floor-length evening gown, a knee-length dress with heels, or your dressiest black dress. Dressy separates, like a knee-length skirt and shell set, also work.