None -- all protons are protons, which are different from neutrons.
Neutrons are completely separate from protons, so neutrons do not have any protons, and protons do not have any 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.
6 protons, 6 neutrons
11 protons and 9 neutrons
4 protons and about 5 neutrons
13 protons and 14 neutrons
77 protons, 115 neutrons.
Neutrons = Rounded Atomic Mass - Amount of Protons