A seismic recording station located 4000 kilometers from the epicenter of an earthquake received the first P-wave at 7:10:00 p. M. (h:min:s). Other information that could be determined from this recording was that the earthquake occurred at approximately...

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