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.
Cycloalkanes Cycloalkanes again only contain carbon-hydrogen bonds and carbon-carbon single bonds, but this time the carbon atoms are joined up in a ring. The smallest cycloalkane is cyclopropane.If you count the carbons and hydrogens, you will see that they no longer fit the general formula CnH2n+2.or example, C4H10 could be either of these two different molecules: These are called respectively butane and 2-methylpropane. INTRODUCING ALKANES AND CYCLOALKANES. This is an introductory page about alkanes such as methane, ethane, propane, butane and the rest.