Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
Two electrons occupying the same orbital in an atom or molecule.
- ‘Although in each molecule there are three hydrogen atoms bonded to the central nitrogen atom, the nitrogen atom also carries a lone electron pair.’
- ‘The resultant bond is called a double bond, and it is symbolized by two lines connecting the atoms, where each line corresponds to an electron pair.’
- ‘The halide retains the electron pair of the carbon-halogen bond when it leaves.’
- ‘Bonds are still the result of electron pairs residing in bonding molecular orbitals.’
- ‘In the case of aldehydes and ketones containing carbonyl groups, the highly nucleophilic Grignard reagent contributes its electron pair to form a bond with the carbon atom.’
An electron and a positron produced in a high-energy reaction.
- ‘Similarly, four protons are pumped into the intramembrane space as each electron pair flows through complexes III and as four electrons are used to reduce O 2 to H 2 O in complex IV.’
- ‘Normal current is carried by single electrons; within superconductors the charge units are electron pairs called Cooper pairs.’
- ‘Such entangled particles should arise from splitting isolated electron pairs, but this effect hasn't been clearly observed yet, in part because the structures are hard to make.’
- ‘This is primarily because of stabilization of the polarization of the radical cation-hydrated electron pair in the condensed media.’
- ‘Pairs of single nanotubes might be used in future experiments to separate the entangled electron pairs in superconductors.’
We take a look at several popular, though confusing, punctuation marks.
From Afghanistan to Zimbabwe, discover surprising and intriguing language facts from around the globe.
The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.