How many carbon atoms does an alkane(not a cycloalkane) need before it is capable of existing in enantiomeric form? Name for two sets of enantiomers with this minimum of carbon atoms?

An alkane needs at least three carbon atoms before it is capable of existing in enantiomeric form.

One example of enantiomers with three carbon atoms is 2-chlorobutane, which exists as (R)-2-chlorobutane and (S)-2-chlorobutane.

Another example is 2-bromobutane, which exists as (R)-2-bromobutane and (S)-2-bromobutane.