the answer is 21. because you do 40-19
Potassium-41 has 19 electrons and protons and 22 neutrons.
Potassium has multiple isotopes, such as potassium-39 and potassium-41, which have different numbers of neutrons in their nuclei. These isotopes do not affect the chemical properties of potassium, but they have different atomic masses due to the differing number of neutrons.
Potassium has 19 protons, 19 electrons and 20 neutrons.
Potassium typically has 20 neutrons in its nucleus.
The number of neutrons in any element depends on the isotope of the element you are referring to. Potassium has 24 isotopes, ranging from 32K to 55K. The most stable natural isotope is 39K, which would have 20 neutrons.
Potassium-41 contains 22 neutrons and 19 protons.
Potassium-41 has 19 electrons and protons and 22 neutrons.
Potassium-39 and potassium-41 are isotopes of potassium, meaning they have the same number of protons but different numbers of neutrons. Potassium-39 has 20 neutrons, while potassium-41 has 22 neutrons. This difference in neutron number results in different atomic masses for the two isotopes.
The correct symbol for the isotope of potassium with 22 neutrons is K-41. The number after the element symbol represents the atomic mass, which is the sum of protons and neutrons in the nucleus. In this case, potassium has 19 protons and 22 neutrons, resulting in an atomic mass of 41.
The nomenclature "potassium-19" is not commonly used because it is redundant. The 19 in potassium-19 would indicate the number of protons in potassium. All isotopes of potassium have 19 protons. Therefore 19 is known as the atomic number of potassium. Potassium-41 is one of the three naturally occurring isotopes of potassium. It has 19 protons and 22 neutrons, giving it an atomic mass number of 41.
Potassium 31 is potassium's normal state, the way you would find it on the Periodic Table. I presume potassium 41 is an isotope of potassium. (An isotope is the same atom, but it has a different number of neutrons, so the mass differs.)
The numbers 39, 40, and 41 after the element name potassium refer to the mass number of the isotopes of potassium. Potassium has three isotopes: potassium-39, potassium-40, and potassium-41, which have 19, 20, and 21 neutrons respectively.
Potassium has multiple isotopes, such as potassium-39 and potassium-41, which have different numbers of neutrons in their nuclei. These isotopes do not affect the chemical properties of potassium, but they have different atomic masses due to the differing number of neutrons.
Potassium (K) typically has 19 neutrons in its nucleus. Potassium-40 is a radioactive isotope with 21 neutrons in its nucleus.
Potassium has 19 protons, 19 electrons and 20 neutrons.
41 protons 41 electrons 52 neutrons
Potassium typically has 20 neutrons in its nucleus.