Draw two cyclic constitutional isomers of trans-1,2-dimethylcyclobutane with the same size ring.

Explanation: Constitutional isomers are the isomers having same molecular formula but have different connectivity of groups.

The two cyclic constitutional isomers of trans-1,2-dimethylcyclobutane having same ring size are:

These two isomers are shown in the image attached below.

the answer for sodium is 0.186

the answer for rubidium is 0.251

diaria maybe go see a doctor about that