How many protons and neutrons does an atom of C-14 have ?
6 protons and 6 neutrons
8 protons and 6 neutrons
6 protons and 8 neutrons
6 protons and 14 neutrons
All carbon atoms have 6 protons in their nucleus. Most carbon atoms also have 6 neutrons, giving them an atomic mass of 12 = 6 protons + 6 neutrons. C-14 atoms have two extra neutrons, giving them a total of 8 neutrons.