Lithium-9 has exactly 3 protons, 3 electrons, and 6 neutrons. To Find the number of protons just look on your Periodic Table, the number usually above the element on the table or the number in bold. (3) Finding the number of neutrons is simply the number preceeding the name (9) minus the number of protons (3).
6 protons, 6 neutrons
11 protons and 9 neutrons
Protons: 10 Neutrons: 10
Potassium-40 (K-40) has 19 protons and 21 neutrons.
7 protons, 7 neutrons and 7 electrons
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.