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Xenon has a variety of isotopes, each with a different number of neutrons. The most common isotope, Xenon-132, has 77 neutrons. To calculate the number of neutrons in a xenon isotope, subtract the number of protons (which is equal to the atomic number) from the mass number of the isotope.
There are 9 isotopes, so there is no the isotope.
The atomic number of an element is the number of protons in its nucleus. Always. The mass number of an atom is the number of protons plus the number of neutrons in it. And that means an isotope of element 54 (xenon) that has 77 neutrons in its nucleus has a mass number of 54 + 77 or 131, and you'll have an atom of 131Xe. A link can be found below.
Each isotope of an element has a different number of neutrons. Number of neutrons = Atomic mass of the isotope - Atomic number of the element The atomic number of xenon is 54. For the list of xenon isotopes see the link below.
The sewyer was left open. End of story.
The mass number of xenon is 131.
Xenon's, or Xe's, atomic number is 54. That means that, if it's electrically neutral, it always has 54 protons and 54 electrons. The number of neutrons in a xenon atom can differ, though, depending on the isotope. The most common isotope of xenon has 78 neutrons, but there are other isotopes with a different number of neutrons in them that are fairly common as well.
There are 77 Neutrons in the nucleus of one atom of Xenon
The "subatomic" particles in atoms are usually considered to be only protons, neutrons, and electrons, although these may contain sub-subatomic particles such as quarks and gluons. Every atom of xenon contains 54 protons and 54 electrons, because 54 is the atomic number of xenon. Every atom of xenon also contains neutrons. The lightest naturally occurring and radioactively stable isotope of xenon is Xe-124. Since the mass number is the sum of protons and neutrons, the total of protons, electrons, and neutrons for this isotope is 124 + 54 or 178. The number of particles for any other isotope of xenon may be found by adding the mass number to the atomic number.
The numer of neutrons depends on the isotope, which, as you've noted, Xenon has several of. Pick one.
Xenon is a non metal element. Mass number of it is 131.
Xenon is a non metal element. Atomic mass of it is 131.