Final answer:
Chirality center configuration is determined by assigning priorities to the four substituents and observing the sequence from 1 to 3; clockwise sequence aligns with R configuration, and counterclockwise with S, provided the lowest priority group points away from the viewer.
Step-by-step explanation:
The configuration of a chirality center in a molecule determines its unique spatial arrangement, which contributes to the molecule's chirality. When assigning R or S configuration to a chiral center, it's essential to follow certain steps. Firstly, the four substituents attached to the chiral center are given priority based on atomic number and other rules, ranging from 1 (highest priority) to 4 (lowest priority). Then, if the lowest priority (4) group is pointing away from the viewer, the configuration is determined to be R (rectus) if the sequence goes 1-2-3 in a clockwise direction, or S (sinister) if it goes counterclockwise. However, if the lowest priority group is not pointing away, one must temporarily reverse the assignment to determine the correct configuration.
The complete question is In point form describe the configuration of the chirality center. Determine if the following molecules have an (R) or an (S) configuration........./;