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What atom has an atomic number of 56 and a mass number of 137 amu?
Barium has an atomic number of 56 and a mass number of 137 amu
An atom has an atomic number of 56 yet has a mass number of 137 amu evalution of data indicates that the element is?
The element with an atomic number of 56 is barium (Ba). However, the mass number of 137 amu does not match any known isotopes of barium. This suggests that the atom in question may be an isotope of barium that is not naturally occurring or may have been produced in a laboratory setting.
What is the mass number for cesium?
The standard atomic weight for cesium is 133. There are 3 other radioactive cesium isotopes that have atomic weights of 134, 135, and 137. Cesium 133 is the only one that is found in nature. The other isotopes are synthetic.
Roundup an herbicide manufactured by Monsanto has the formula C3H8NO5P. How many moles of molecules are there in a 348.2-g sample of Roundup?
To find the number of moles, divide the sample's mass (348.2 g) by the molar mass of the compound (137 g/mol). Since the compound's formula is C3H8NO5P, the molar mass is the sum of the atomic weights of each element: [3(12.01) + 8(1.01) + 14.01 + 5(16.00) + 30.97] = 137 g/mol. Thus, there are 2.54 moles of molecules in the 348.2-g sample of Roundup.
How many neutrons are in the nucleus of an atom of 118 50 Sn?
Sn (tin) has an atomic number of 50, which indicates there are 50 protons in its nucleus. If the atomic mass is 118, then the number of neutrons is the difference between the two numbers, or 68 neutrons.
What is the atomic mass of barium?
Barium is a non metal element. Atomic mass of it is 137.
What atom has an atomic number of 56 and a mass number of 137 amu?
Barium has an atomic number of 56 and a mass number of 137 amu
What is the weight of cesium?
Ceasium is a metal element. Atomic mass of it is 133.
An atom has an atomic number of 56 yet has a mass number of 137 amu evalution of data indicates that the element is?
The element with an atomic number of 56 is barium (Ba). However, the mass number of 137 amu does not match any known isotopes of barium. This suggests that the atom in question may be an isotope of barium that is not naturally occurring or may have been produced in a laboratory setting.
What is the atomic mass number in barium?
The mass number is the sum of protons and electrons in the atomic nucleus of an isotope. Barium has many isotopes and each has another mass number.
What is the atomic number and atomic mass number of barium?
The atomic number of barium is 56. It has naturally occurring isotopes with mass numbers of 130, 132, 134, 135, 136, 137, and 138.
What is the mass of a barium atom?
The atomic weight (not mass) of barium is 137,327(7).
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.
An isotope of radon has 86 protons and 137 neutrons what is the mass number of this isotopes?
An isotope of indium has 77 protons and 115 neutrons. What is the mass number of this isotope
How many neutrons are contained in an atom of barium - 136?
The atomic number of barium is 56. So there are 56 protons and 56 electrons.
What is the mass number for cesium?
The standard atomic weight for cesium is 133. There are 3 other radioactive cesium isotopes that have atomic weights of 134, 135, and 137. Cesium 133 is the only one that is found in nature. The other isotopes are synthetic.
What is the parent radioisotope if a beta decay produces barium 137?
Same mass, atomic number one lower - Cs - caesium
