Omid is spending the semester in england where the road signs are in km. if he drives from his school into a town 6mi away, how many km will he drive?

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass