Carbon and Nitrogen are not the same element. Elements have the same atomic number, not the same atomic mass. Elements with the same atomic number, but different atomic masses are called isotopes. read more
The elements carbon and nitrogen have the atomic numbers 6 and 7, respectively. Carbon has 6 protons in its nucleus, and nitrogen has 7 protons in. read more
Nitrogen-15 has a greater mass number than nitrogen-14 because the atomic nucleus of nitrogen-15 contains _____. 8 neutrons From its atomic number of 15, it is possible to predict that the phosphorus atom has _____. read more