Preferred Label : bond number;
IUPAC definition : The number of electron-pair bonds between two nuclei in any given Lewis formula (electron
dot or Lewis structure). For example, in ethene the bond number between the carbon
atoms is two, and between the carbon and hydrogen atoms it is one.;
Origin ID : B00705;
See also
The number of electron-pair bonds between two nuclei in any given Lewis formula (electron
dot or Lewis structure). For example, in ethene the bond number between the carbon
atoms is two, and between the carbon and hydrogen atoms it is one.