78 is the commonest number.
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 77 Neutrons in the nucleus of one atom of Xenon
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.
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 numer of neutrons depends on the isotope, which, as you've noted, Xenon has several of. Pick one.
The inert gas xenon (chemical symbol Xe) has an atomic number of 54, and it has 54 protons in its nucleus. The number of neutrons varies, however. Let's look at what's going on. There are 37 different know isotopes of xenon. They range from Xe-110 (with 56 electrons) through Xe-147 (with 93 neutrons). Among these isotopes are the 9 stable isotopes of xenon. They are Xe-124 (70 neutrons), Xe-126 (72 neutrons), Xe-128 (74 neutrons), Xe-129 (75 neutrons), Xe-130 (76 neutrons), Xe-131 (77 neutrons), Xe-132 (78 neutrons), Xe-134 (80 neutrons), and Xe-136 (82 neutrons). Everything other than these is unstable and will have a neutron count that can be found with simple math. Given an isotope, like Xe-147, subtract the number of protons (the atomic number), which is 54, from the isotope number, which is 147 in this case. The 147 - 54 means that there will be 97 protons in the nucleus of a xenon-147 atom. A link can be found below.
6 protons. The number of neutrons varies, but the most common isotope has 6 neutrons.
The number of neutrons in a bromine atom can vary depending on the isotope. The most common isotope of bromine, ^79Br, has 44 neutrons.
No. Even atoms of the same element will vary in the number of neutrons in their nucleus. For example, carbon (6 protons) has isotopes with 6, 7, and 8 neutrons. The most common isotope of hydrogen (1 proton) does not have any neutrons. While the most common isotopes of the lighter elements generally have the same number of protons and neutrons, heavier elements will have more neutrons than protons. For example the most common most stable isotope of uranium (92 protons) has 146 neutrons.
Xenon does not readily form an ion.
Number of neutrons = Mass number of an isotope - 93The most common isotope has 144 neutrons.
69