The atomic number of potassium is 19 how does potassium -39 differ from potassium -41?
39K has 20 neutrons and 41K has 22 neutrons.
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.
How many protons electrons and neutrons does a potassium atom that has an atomic number of 19 and a mass number of 39?
How many protons are in the nucleus of an atom that has an atomic number of 19 and an atomic mass of 39?
Name: Potassium Symbol: K Atomic Number: 19 Atomic Mass: 39.0983 amu The atomic number is 19 and the mass number of its most abundant isotope K-39 is 39 (19 protons + 20 neutrons) while the mass of that isotope is 38.96371 a.m.u. The relative atomic mass of the element potassium, K, is 39.10 g/mole.