Enantiomers are only associated with amino acids. are always designated either d or l. can exist for molecules with more than one chiral carbon. can be specific types of diastereomers.

can exist for molecules with more than one chiral carbon

Explanation:

Stereoisomers are the molecules that have same composition but have different spatial arrangement ,

A chiral is any object that is non superimposable on its own mirror image .

Chiral center is any carbon with tetrahedral geometry and with 4 different substituents .

The chiral structures which cannot be superimposed but are mirror images are known as an Enatiomers .

If they are not mirror images then they are called diastereomers .

Enatiomers can be denoted by , +/- sign , D or L and R or S .

They can have more than one chiral center .

Hence from the question , the correct option is can exist for molecules with more than one chiral carbon .

sodium (na), for example, has one electron in its valence shell. this is an unstable state because that valence shell needs eight electrons to be full. in order to fill its valence shell, find a way to add seven electrons to its valence shell

that's what i got you can count the number of atoms