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How many neutrons are does yttrium have with an atomic number of 39 and atomic mass of 89?
50 neutrons
What is the atomic mass and neutrons are K?
The mass number of Potassium is 39 which means it has 20 neutrons.
19protons and 20 neutrons are equal to how many atomic mass?
As electrons have such a small mass, they are not counted in the atomic mass. Thus the mass of an atom with 19 protons and 20 neutrons is 39.
How many protons and electrons are in a gallium atom?
Gallium has an atomic number of 31. This means that it contains 31 protons, each one having a +1 charge. Therefore, in order for gallium to have a net charge of 0, it must also contain 31 electrons, because electrons have a charge of -1.
An atoms of potassium has atomic mass of 39 amu and an atomic number it therefore has neutrons in its nulces?
17. (:
How many neutrons are does yttrium have with an atomic number of 39 and atomic mass of 89?
50 neutrons
What is the atomic mass and neutrons are K?
The mass number of Potassium is 39 which means it has 20 neutrons.
19protons and 20 neutrons are equal to how many atomic mass?
As electrons have such a small mass, they are not counted in the atomic mass. Thus the mass of an atom with 19 protons and 20 neutrons is 39.
How many protons and electrons are in a gallium atom?
Gallium has an atomic number of 31. This means that it contains 31 protons, each one having a +1 charge. Therefore, in order for gallium to have a net charge of 0, it must also contain 31 electrons, because electrons have a charge of -1.
An atoms of potassium has atomic mass of 39 amu and an atomic number it therefore has neutrons in its nulces?
17. (:
How many neutrons does potassium-39 have?
Answer: 20 Details: mass number - atomic number = number of neutrons.
What is the mass number and symbol of an atom that contains 19 protons 19 electrons and 20 neutrons?
The mass number is always the sum of the numbers of protons and neutrons and therefore is 39 in this instance. The atomic number of 19 shows that the atom is of the element potassium, and its symbol is 39K.
How many neutrons in chromium-63 have?
Number of neutrons = Mass number - atomic number = 63 - 24 = 39
Explain the difference between atomic mass and atomic number?
How many neutrons are in an atom of this isotope if the atomic number of yttrium is 39 and the atomic mass of the isotope is 89?
50 because 89(the atomic number, which is the amount of protons+the amount of neutrons)-39(the amount of protons) is 50
What is the atomic and mass number of potassium?
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.
How do you find out the atomic mass of an element?
On the periodic table it is the number on the bottom of the element.If you know the amount of neutrons you can add it to the number of protons to find the atomic mass NUMBER, which is a good approximate of the atomic mass.Potassium (isotope 39), 19K(39), has 19 protons and 20 neutrons19 + 20 = 39 atomic mass NUMBER, its atomic mass is 39.10 a.m.u.
