![]() Below is a chart that shows the valency of carbon, nitrogen, oxygen, halogens, and hydrogen. However, valency does indicate the number of bonds that every element likes to form. This doesn’t mean, for example, that carbon can never have less than four bonds, or the oxygen will never be binding to more than two atoms. So this is the valency of those atoms which, in simple words, is the number of bonds the given element forms most often. What we notice is that carbon has four bonds in each molecule, oxygen has two, nitrogen– three and halogens together with hydrogen tend to have only one bond. Take a look at these molecules and try to find a bonding pattern for each element: Valency is the tendency of elements for making a certain number of bonds. ![]()
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