'Curly arrows'
The correct use of ‘curly arrows’ to represent the movement of a pair of electrons can prove problematic to students particularly when using them in two-dimensional diagrams. This covers the common errors that students (and sometimes teachers and examiners too) make and how ‘curly arrows’ should be used correctly. The correct use of ‘curly arrows’ causes real problems – both to students (and teachers) and examiners....