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 dinner jackets can be worn to any black-tie occasion in hot weather. See Warm-Weather Black Tie for the complete etiquette of this natty variation. When wearing a tuxedo, never, ever refer to yourself as a penguin or your clothing as a monkey suit. Black-tie dressing should be about elegance and confidence..