Which is the explanation for the difference between the two isotopes of carbon,C-12 and C-14?
A)C-14 contains 2 more protons than does C-12.
B)C-14 contains 1 proton and 1 neutron more than does C-12.
C)C-14 contains 2 more neutrons than does C-12.
D)C-14 contains 2 more electrons than does C-12.