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.
Iodine has 53 protons. Iodine 127 has 74 neutrons. With a negative charge, it would have an extra electron, meaning it would have 54 electrons.
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.
The atomic number refers to the number of protons in the nucleus. This is what dictates the atom's chemical properties. One proton, hydrogen. Two protons, helium, and so on. The mass number is the sum of protons and neutrons combined. Therefore, the number of neutrons in an atom of samarium (62 Sm 151) is the difference: 89 Samarium 151 is not stable, incidentally. It has a half life of 90 years, decaying by beta particle emission. What happens (essentially) is that one of those neutrons splits into a proton/electron pair. The electron is ejected from the nucleus. The atomic number goes up by one, but the mass remains the same. 62 Sm 151 transmutes into 63 Eu 151 (europium), which is a stable rare earth element.
Te-128 has 52 protons, 52 electrons, and 76 neutrons.
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.
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.
Number of neutrons = Mass number - atomic number = 210 - 82 = 128
there are 8 neutrons in every oxygen atom so times it by 16 is actually 128
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
Iodine has 53 protons. Iodine 127 has 74 neutrons. With a negative charge, it would have an extra electron, meaning it would have 54 electrons.
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.
The atomic number refers to the number of protons in the nucleus. This is what dictates the atom's chemical properties. One proton, hydrogen. Two protons, helium, and so on. The mass number is the sum of protons and neutrons combined. Therefore, the number of neutrons in an atom of samarium (62 Sm 151) is the difference: 89 Samarium 151 is not stable, incidentally. It has a half life of 90 years, decaying by beta particle emission. What happens (essentially) is that one of those neutrons splits into a proton/electron pair. The electron is ejected from the nucleus. The atomic number goes up by one, but the mass remains the same. 62 Sm 151 transmutes into 63 Eu 151 (europium), which is a stable rare earth element.
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
128 oz