19
Potassium has 19 protons.
There are 19 protons in the potassium atom.
The atomic number of potassium is 19. This means that there are 19 protons in every potassium atom, regardless of isotope.
There are 17 protons in the nucleus of an atom of chlorine.
An atom of osmium has 76 protons in its nucleus.
One atom of potassium contains 19 protons.
Each barium atom has 56 protons in its nucleus.
The number of protons in the nucleus of an atom is equal to the atomic number of the element.
The potassium atom has 19 electrons orbiting its nucleus.
Potassium has 19 protons.
There are 24 Protons in Chromium's nucleus.
There are: 19 protons 20 neutrons and a total of 19 electrons (2 being in the first energy level, 8 being in the second and third, and 1 being in the last, or fourth, energy level) in a Potassium(K) atom.