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Fluorine is the element with atomic weight closest to 19 amu. Fluorine has an atomic number of 9, so an electrically neutral fluorine atom would have 9 electrons.
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Explain the difference between atomic mass and atomic number?
If fluorine has an atomic number of 9 and an atomic mass of 19 how many electrons does fluorine contain?
The number of electrons is always the same as the atomic number. That gives you the number of protons and electrons. The atomic mass has nothing to do with it. What is the atomic number? That is your answer.
What is the amount of electrons in potassum?
Use the Periodic Table to get Atomic number (19), and atomic mass (39.1). The atomic number is the number of protons, and in the neutral atom, also the number of electrons: 19. The atomic mass is the sum of the mass of the protons and neutrons, 39.1. Subtract the number of protons (use integers) from the atomic mass, 39 - 19 = 20, which is the number of neutrons. Protons = 19 Neutrons = 20 Electrons = 19
Fluorine has an atomic number of 9 and a mass number of 19 How many electrons are needed to?
9,10
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.
An atom of Potassium has a mass number of 40 and an atomic number of 19.how many protons does it have?
The atomic number is the number of protons: 19.number of neutrons = mass number - atomic number = 21.The number of electrons is normally the same as the number of protons: 19
An atom with an atomic number of 9 and a mass number of 19 would have an atomic mass of what?
The atomic number of the potassium is 19. So the number of protons and electrons is 19 in the atom of potassium. The number of neutrons can be calculated as mass number minus atomic number. It comes to be 39 minus 19. That is 20.
What is the atomic mass of an atom that contians 19 protons 19 electrons and 20 neutrons?
The atomic mass of the isotope potassium-39 is 38,963 706 68(20).
How many electrons in atom with atomic number of 9 and atomic mass of 19 and is electrically neutral?
Since the atom is electrically neutral, the number of electrons must be the same as the number of protons in the atom, which is the definition of atomic number. Therefore, there are 9 electrons.
How many nuetrons does an einsteinium element have?
99 protons 99 electrons Number of neutrons = Atomic mass of an isotope - Atomic number of the element Einsteinium's atomic number is 99 but Es has 19 known isotopes.Einsteinium has 99 protons.
How many protons neutrons electrons in atom of fluorine?
An atom of Fluorine has the atomic number 9 and the mass number 19 (rounded up). This means it has 9 electrons, 9 protons and (19-9) 10 neutrons. The proton and electron count are taken from the atomic number. The mass number - the atomic number gives the number of neutrons.
How many electrons does fluorine-19 have?
Fluorine-19 (not "flourine-19) has an atomic number of 9 and therefore has 9 each of protons and electrons. The number of neutrons is found by subtracting the atomic number from the atomic mass number: 19 - 9 = 10 neutrons.
