20 for the stable atom
The atomic nucleus of potassium has 19 protons and a number of neutrons specific for each isotope (from 13 n to 36 n).
the answer is 21. because you do 40-19
How many protrons and neutrons does silicon have in the nucleus?
The nucleus - protons and neutrons. This applies to all atoms.
There are 6 neutrons in a carbon nucleus.
Potassium has 19 protons, 19 electrons and 20 neutrons.
4 neutrons
The number of neutrons in the nucleus of an atom of xenon depends on the isotope of xenon. For the most common isotope, xenon-132, there are 77 neutrons in the nucleus.
14 neutrons
The isotopeUuo-294 has 176 neutrons.
I assume you mean neutrons. There are 48 neutrons in Kr. There is only one nucleus consisting of 36 protons and 48 neutrons.
Potassium-41 contains 20 neutrons. It is calculated by subtracting the atomic number from the mass number, which in this case is 41-19 = 22 neutrons.