Answer:
I am also beginners I don't know I am only completing this answer and sorry!!!!!!
The mass would be 28. The mass of an atom equals the number of neutrons and protons added together. In this case, they do not say the protons. But we must use our inside knowledge to know that the number of protons equals the number of electrons. Thus, your number of protons would be 13
C12H22O11 aka carbon, hydrogen, and oxygen
Sodium will have a larger radius. Look up the atomic radius Trend
The mass and Volume is different even thought they have a similar shape and size
