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No. I would expect each atom of any particular compound to have similar but not the same mass. This is because, although each atom will have the same number of protons and electrons, they can have different numbers of neutrons. The mass of an atom is almost entirely dependent on the number of protons and neutrons.
Tin, for example, has atomic number 50 so that it has 50 protons and 50 electrons. But is has 10 stable isotopes:
- Sn 112 - with 62 neutrons
- Sn 114 - with 64 neutrons
- Sn 115 - with 65 neutrons
- Sn 116 - with 66 neutrons
- Sn 117 - with 67 neutrons
- Sn 118 - with 68 neutrons
- Sn 119 - with 69 neutrons
- Sn 120 - with 70 neutrons
- Sn 122 - with 72 neutrons
- Sn 124 - with 74 neutrons
In addition, there are 29 known non-stable isotopes, including Sn 126 which has a half-life of approx a quarter of a million years.
Six of the stable isotopes have an abundance of 5% or more so it is quite likely that atoms of tin have different masses.
Wiki User
∙ 8y ago
Wiki User
∙ 16y agoIn theory, yes. Although there might be variation depending on ions, etc.
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What is mass number equal to?
The mass number of an atom is defined as the total number of protons and neutron (collectively called "nucleons") in the atomic nucleus. For example, a helium atom with 2 protons and 2 neutrons would have a mass number of 4.
The lighter the atom the less mass in one mole of that atom?
Correct, because if there are fewer protons and neutrons in an atom, it will have a lower mass.
Why does not an atom of an element represent the actual mass of its atom?
The atomic mass of an element is measured not in the mass of the atom, but in the number of grams per mole.
How big is a silicon atom?
Silicon has: atomic mass 28.0855 g/mol [Wikipedia] density 2.3290 g/cm^3 [Wikipedia] ==> 2.329000E6 g/m^3 ==> 82.925E3 mol/m^3 mole 6.0221E23 ==> 49.938E27 atoms per metre cubed ==> 20.025E-30 m^3 per atom If the atom was a cube, each side would be 271E-12 metres. If the atom was a sphere, its diameter would be 336.92E-12 metres. If the atom was a tetrahedron, each side would be 553.87E-12 metres.
What is the mass of an atom concentrated on?
virtually all the mass in concentrated in the nucleus of the atom, as the electron's mass is so small, it is negligible.
Did john Dalton have a predictable mass on his atom?
Yes. He proposed that all elements have a specific mass, and each atom for a particular element would have that mass.
Will kilogram of hydrogen contain more atoms then kilogram of lead?
Yes, because each hydrogen atom has less mass than each lead atom.Yes, because each hydrogen atom has less mass than each lead atom.Yes, because each hydrogen atom has less mass than each lead atom.Yes, because each hydrogen atom has less mass than each lead atom.
Is all of the mass in an atom in the nucleas?
The mass of an atom is mostly in the nucleus. Though electrons that orbit the nucleus also have mass, their masses are so small (each electron is 1/1823th the mass of a proton), the mass of any atom would be 99.9% in the nucleus.
How many neutrons would you expect to find in an atom of zinc?
zinc has mass no 65 and 30 protons so neutrons are..35
What is the Mass of an atom is located in what structure of the atom?
In the nucleus of the atom, protons and neutrons therein each add 1 atomic mass unit.
How many mass units is there if each atom of element X has 13 mass units and each atom of element Z has 31 mass units?
The answer depends on how many atoms of X and Z are found in each molecule of the compound.
The mass of the object would be read as?
atom
Do the elements in the periodic table have the same mass?
No! The mass of one atom of each element increases as you move down and to the right on a periodic table. The mass of an atom of a particular element is called its atomic mass.
What is the mass in grams of a single atom of each of Ne?
mother earth
How do you fin theoretical yield?
You use conservation of mass-the total number of each atom in the reactents is equal to the total number of each atom in the products.
Which part of an atom make up nearly all the mass of an atom?
This would be the NUCLEUS.
What is relationship between atomic mass and average atomic mass?
The average atomic mass is the ratio of the average mass of one atom of an element to one twelfth of the mass of an atom of carbon-12. It is, the mass of an atom of the substance, rescaled so that carbon-12 would have a mass of 12.
