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It has 78 neutrons.
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∙ 7y ago
Cesium-133 has an atomic number of 55, which means it has 55 protons in its nucleus. Since the atomic number represents the number of protons, the number of neutrons in an atom of cesium-133 can be calculated by subtracting the atomic number from the Atomic Mass.
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How many neutrons does a cesium 141 have?
The atomic number of cesium is 55. The number of neutrons is the isotope mass number minus atomic number, or in this instance 86 neutrons.
What is the mass number of an iron that has 29 neutrons?
The mass number of an iron is determined by the total number of protons and neutrons. Iron has an atomic number of 26, meaning it has 26 protons. If the iron atom has 29 neutrons, the mass number would be 26 (protons) + 29 (neutrons) = 55.
How many neutrons does technetium have?
Technetium has 34 isotopes, with no stable isotopes
An atom with 55 protons and 76 neutrons?
This atom would be a specific isotope of cesium, with an atomic number of 55. Its mass number, which is the sum of protons and neutrons (55 + 76), would be 131.
If technetium-98 has 55 neutrons how many does technetium-99 have?
Tc has 55 neutrons, its variants such as Tc-99 have a differing number of neutrons ranging from 54, 55, and 56 in the longer lived isotopes such as Tc-99. Tc-99 also has a half-life of 211,000 years.
How many protons and neutrons does cesium 134 have?
Cesium has an atomic number of 55. Fifty-five indicates the number of protons and electrons. The task here is to find the number of neutrons. To do so, take 134 and subtract 55 to get 79.
How many neutrons are in an atom of cesium 137?
In atomic form (as opposed to being an ion), cesium-137 has 55 electrons, just as all cesium atoms have.
How many neutrons does a cesium 141 have?
The atomic number of cesium is 55. The number of neutrons is the isotope mass number minus atomic number, or in this instance 86 neutrons.
What is the mass number of an iron that has 29 neutrons?
The mass number of an iron is determined by the total number of protons and neutrons. Iron has an atomic number of 26, meaning it has 26 protons. If the iron atom has 29 neutrons, the mass number would be 26 (protons) + 29 (neutrons) = 55.
How many neutrons in Mn-25?
There are 13 neutrons in Mn-25. This can be calculated by subtracting the atomic number (number of protons) from the mass number (sum of protons and neutrons), giving you 25 - 13 = 12 neutrons.
If an atom has a number of 25 and an atomic mass of 55?
The atom has 25 protons in its nucleus based on the atomic number. The atomic mass of 55 is the sum of protons and neutrons in the nucleus. Therefore, the atom has 30 neutrons (55 - 25 = 30).
How many neutrons does Manganese-55 have?
Manganese is a metal element. Atomic mass number of it is 55.
How many neutrons does technetium have?
Technetium has 34 isotopes, with no stable isotopes
How many protons electrons and neutrons do Caesium have?
Caesium is in the first raw. Atomic number of it is 55. So it has 55 protons.
An atom with 55 protons and 76 neutrons?
This atom would be a specific isotope of cesium, with an atomic number of 55. Its mass number, which is the sum of protons and neutrons (55 + 76), would be 131.
If technetium-98 has 55 neutrons how many does technetium-99 have?
Tc has 55 neutrons, its variants such as Tc-99 have a differing number of neutrons ranging from 54, 55, and 56 in the longer lived isotopes such as Tc-99. Tc-99 also has a half-life of 211,000 years.
What is the mass number of an isotope if it has an atomic number of twenty five?
Manganese or Mn has an atomic number of 25 (25 protons). The stable atom has 30 neutrons, so the stable atomic mass is 55 amu. The mass for one of its isotopes depends on how many neutrons it has. For instance, the next most stable isotope of Mn is Mn53 with only 28 neutrons so it has an atomic mass of 53 amu.
