## Wikipedia - Chirality (chemistry) chirality

https://doi.org/10.1351/goldbook.C01058
The geometric property of a rigid object (or spatial arrangement of points or atoms) of being non-superposable on its mirror image; such an object has no symmetry elements of the second kind (a mirror plane, $$\sigma =S_{1}$$, a centre of @I03146@, $$i=S_{2}$$, a rotation-reflection axis, $$S_{2n}$$). If the object is superposable on its mirror image the object is described as being @A00069@.