a reaction in which part of a compound is added to one end of a double or triple bond, while the rest adds to the other end, converting it, respectively, to a single or double bond.
How Are Newly Discovered Chemical Elements Named?Unlike common elements, newer elements are synthesized in a lab; they are not observed in nature. They are very unstable and quickly dissolve into other elements. So how do scientists name them?
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019