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.
Everything you need to know about knitted ties. Wear them in summer. Wear them in winter. Wear them with a suit. Wear them with a denim jacket and slim-cut cargo trousers. These are the ever-changing rules of the knitted tie. If you're wondering where to start (whether it be what width to go for, which knot to use or whether a pattern is acceptable), we've broken down everything you need to know - meaning that while your tie might be knitted, your brow certainly won't be.