Radial: A word with diverse meanings in medicine and the biomedical sciences: 1  Pertaining to the radius, the smaller bone in the forearm. 2  The radial artery is so named because of its proximity to the radius. 3  Pertaining to the radius of a circle.
A 3D model of ethyne (acetylene), the simplest alkyne. In organic chemistry, an alkyne is an unsaturated hydrocarbon containing at least one carbonâcarbon triple bond. The simplest acyclic alkynes with only one triple bond and no other functional groups form a homologous series with the general chemical formula CnH2nâ2.
An alkyl group is a univalent radical consisting of carbon and hydrogen atoms, with one H atom less than their alkane counterparts. They form homologous series with a general formula of CnH2n+1, while the general formula of the alkanes is CnH2n+2.est Answer: Alkyl groups are substituents that have one less H (hydrogen atom) than the corresponding alkane.