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18 protons

18 electrons

22 neutrons

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11y ago
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13y ago

18 protons and electrons and 22 neutrons.

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Anonymous

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4y ago

How many protons neutrons and electrons in 40AR

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Q: How many protons neutrons and electrons in 40 Ar?
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Related questions

How many electrons and neutrons are in germanium?

32 protons, 32 electrons. Ge-72 isotope has 40 neutrons


How many neutrons does calcium-40 have?

Number of neutrons = mass number - atomic number = 40 - 20 = 20 neutrons


How many neutrons and protons are in zirconium?

40 protons and 40 electrons.The most stable isotope of zirconium (Zr-91) has 51 protons.


How many protons neutrons and electrons are in k40?

K always has 19 protons, because that is what defines it as an element.40, the atomic mass is the sum of protons and neutrons. So if you subtract the number of protons from the atomic mass, you get the number of neutrons.40-19=21 neutrons


How many protons electrons and neutrons are in a carbon-40 atom?

The isotope carbon-40 doesn't exist !


How many protons neutrons electrons in zinc2 plus?

The number of protons is 30, the number of electrons is 28, the number of neutrons is different for each isotope.


How many protons neutrons and electrons are in potassium 40?

Potassium (K ; Kalium) has Atomic No,. 19 in the Periodic Table. The '19' tells us that potassium has 19 protons , and 19 electrons. Potassium's atomic mass is '40' . This tells us the total number of nucleons in the nucleus of the atom. Nucleons is the collective noun for protons and neutrons. Since by the Atomic No. we know that there are 19 protons , then the number of neutrons is 40 - 19 = 21 neutrons. Since protons and neutrons are given an arbitrary value of '1' each, then '40' is the atomic mass of patassium. NB Some of your correspodents have stated that there is only 1 electron. This is completely wrong ; they have misunderstood. It has 19 electrons. Potassium , like sodium ; Same Group '1' elements), readily ionise ONE electron So the to form the ion K^(+). The other 18 electrons remains in the ion. Since there are 19 protons ( 19 (+) positives, there musr be 19 electrons (19(-) negatives) to maintain an uncharged atom . When one electron is ionised (lost) the atom becomes an ion and contains 19 (+) & 18(-) = 1(+) ; indicated as '+' So the atomic symbol is 'K' , but the ionic symbol is 'K^(+)'. K^(+) is a charged species , a cation. NOT an atom . NNB Potassium can exhibit ISOTOPES . This is where the number of NEUTRONS can vary. So the isotopes K-39 has 20 neutrons, 19 protons, 19 electrons K-40 has 21 neutrons , 19 protons, and 19 electrons K-41 has 22 neutrons , 19 protons and 19 electrons. However, as an example , an isotope of K-41 may ionise to K-41^(+) This ion would contain 22 neutrons, 19 protons, an 18 elecgtrons. Notice in ALL cases the number of protons does NOT change. A change in the number of protons means that it is a different element. Hope that helps!!!!


How many protons neutrons and electrons are in Francium?

Francium has 87 protons and electrons; the number of neutrons is different for each isotope and francium has ca. 40 isotopes ad isomers. Number of neutrons = Atomic mass of the isotope - 87


How many protons does k-40 have?

The atomic number of potassium is 19. So there are 19 protons, 19 electrons. In K-40 isotope, there are 21 neutrons.


How many neutrons and electrons in the element argon?

Argon has 18 protons, 18 electrons. The most stable isotope of argon (Ar-40) has 22 neutrons.


How many protons electrons and neutrons dose francium contain?

Francium has 87 protons and electrons; the number of neutrons is different for each isotope and francium has ca. 40 isotopes ad isomers. Number of neutrons = Atomic mass of the isotope - 87


What is the number of protons neutrons and electrons in an atom of zirconium 90 that has overall charge and an atomic number of 40?

Zirconium-90 (90Zr) has the atomic number 40, and it has 40 protons. The question asked about a specific isotope of zirconium, and the 90 in this isotope represents the number of protons plus the number of neutrons in 90Zr. The math is simple, and 90 minus 40 tells us there are 50 neutrons in this atom. As the atom was said to be electrically neutral, so that means the number of electrons will be equal to the number of protons. The atom will, therefore, have 40 electrons.