The number after the "N", 15, is the mass number. The mass number is the sum of the number of protons and the number of neutrons. So, if you find a Periodic Table, you can find the atomic number, which is the same as the number of protons. Because the atomic number of nitrogen is 7, it has 7 protons. Then we take the mass number (protons + neutrons) and subtract the number of protons to find the number of neutrons. 15 - 7 = 8 neutrons in 15N.
18 protons 18 electrons 22 neutrons
77 protons, 115 neutrons.
Boron-12 has 5 protons and 7 neutrons.
Cesium has 55 protons, 78 neutrons, and 55 electrons.
There are 23 electrons, 28 neutrons, and 23 protons in vanadium.
Neutrons are completely separate from protons, so neutrons do not have any protons, and protons do not have any neutrons.
None -- all protons are protons, which are different from neutrons.
16 neutrons and 16 protons
there are 66 protons & 97 neutrons
18 protons 18 electrons 22 neutrons
Phosphorous has 15 protons and 16 neutrons.
Neon has 10 protons and 9 neutrons.
13 protons and 14 neutrons
4 protons and about 5 neutrons
6 protons, 6 neutrons
11 protons and 9 neutrons
77 protons, 115 neutrons.