How Many Neutrons Does Potassium 39 Have

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How many neutrons do potassium 39 and potassium 40 have. Potassium-40 - It has 19 protons and atomic mass is 40.


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Hence number of neutrons is 40 - 19 which is 21.

. Therefore potassium-39 contains 39 - 19 or 20 neutrons. K-41 is one of the naturally occurring isotopes of potassium. K-41 has a total of 24 neutrons and normal K atom has 22 neutrons.

K-41 has a total of 22 neutrons and normal K atom has 20 neutrons. It has therefore 39-19 20 Neutrons. Potassium is element number 19 so it has 19 protons and 19 electrons in the neutral atom.

Hence number of neutrons is 39 - 19 which is 20. Protons in potassium 19 Atomic mass of potassium-39 39amu Atomic mass of potassium-40 40amu atomic mass protons neutrons neutrons atomic mass-protons neutrons in K-39 39-1920 neutrons in K-4040-1921. Why does potassium have 19 electrons.

Use the periodic table to explain how the structure of K-41 differs from the normal K atom. The standard mass for potassium is 39. Potassium-39 - It has 19 protons and atomic mass is 39.

Potassium-39 has 20 neutrons Potassium-40 has 21 neutrons and Potassium-41 has 22. Hence number of neutrons is 41 - 19 which is 22. The atomic number of potassium is 19.

This tells you that potassium has 19 protons and - since the number of protons is the same as the number of electrons- also 19 electrons. Potassium-39 has 20 neutrons Potassium-40 has 21 neutrons and Potassium-41 has 22 neutrons. If you therefore subtract the number of protons 19 from the atomic mass 39 you are left with the number of neutrons 20.

This means that the atomic weight is 39 for both protons and neutrons. Potassium-41 - It has 19 protons and atomic mass is 41. Each isotope has 19 protons and 19 electrons but the number of neutrons vary.


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