124
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.
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.
The atomic number (Z) is 62, indicating 62 protons in the nucleus. The mass number (A) is 151, which is the sum of protons and neutrons. Therefore, the number of neutrons present would be 151 (mass number) - 62 (protons) = 89 neutrons.
There are 52 protons in an atom of tellurium. The number of neutrons varies, however, as there are a number of isotopes of this metalloid. There are 70, 72, 73 and 74 neutrons in stable isotopes of tellurium, and 68, 71, 76 and 78 neutrons in four radioactive isotopes which can be found naturally. In all, there are isotopes of tellurium with 53 thorough 90 neutrons. A link can be found below for more information.
Si-28: 14 protons and electrons, 14 neutronsNi-60: 28 protons and electrons, 32 neutronsRb-85: 37 protons and electrons, 48 neutronsXe-128: 54 protons and electrons, 74 neutronsPt-195: 78 protons and electrons, 117 neutronsU-238: 92 protons and electrons, 146 neutrons
Te-128 has 52 protons, 52 electrons, and 76 neutrons.
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.
Polonium 212 has 84 protons and 128 neutrons. An alpha particle is 2 protons and 2 neutrons, so the daughter nucleus will have 82 protons and 126 neutrons, making it lead 208.
Number of neutrons = Mass number - atomic number = 210 - 82 = 128
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.
there are 8 neutrons in every oxygen atom so times it by 16 is actually 128
It depends on the isotope (atoms of lead with different numbers of neutrons). There are three stable isotopes of lead:206Pb has 124 neutrons207Pb has 125 neutrons208Pb has 126 neutrons
The atomic number of tellurium is 52. So there are 52 protons and 52 electrons. the number of isotope depends on the isotope. Te-128 has 76 neutrons. Note: Mass number = number of protons + number of neutrons
The atomic number (Z) is 62, indicating 62 protons in the nucleus. The mass number (A) is 151, which is the sum of protons and neutrons. Therefore, the number of neutrons present would be 151 (mass number) - 62 (protons) = 89 neutrons.
There are 52 protons in an atom of tellurium. The number of neutrons varies, however, as there are a number of isotopes of this metalloid. There are 70, 72, 73 and 74 neutrons in stable isotopes of tellurium, and 68, 71, 76 and 78 neutrons in four radioactive isotopes which can be found naturally. In all, there are isotopes of tellurium with 53 thorough 90 neutrons. A link can be found below for more information.
Si-28: 14 protons and electrons, 14 neutronsNi-60: 28 protons and electrons, 32 neutronsRb-85: 37 protons and electrons, 48 neutronsXe-128: 54 protons and electrons, 74 neutronsPt-195: 78 protons and electrons, 117 neutronsU-238: 92 protons and electrons, 146 neutrons
128 oz