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.
When picking out a style of bow tie to wear, donât be too scared of color for formal events. Pick out a bow tie that draws your eye and plays off the colors of your suit and shirt. For black tie events, the solid black bow tie with a tuxedo will always be classic.