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They don't contain the same number of particles because some particles are more dense than others making one atom and another atom the same mass but not have the same number of particles.

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15y ago

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Does a carbon atom have the same mass as an oxygen atom?

No all oxygen atoms do not have the same mass as you can get isotypes of the same element which are still called the same except that they can have more or less neutrons than the standard model this is why the weight is refered to as an average mass


How do you find the atomic mass of CO2?

To find the atomic mass of CO2, you need to identify the atomic masses of each element in the compound and then add them together. The atomic mass of carbon (C) is 12.01 amu, and the atomic mass of oxygen (O) is 16.00 amu. In CO2, there are two oxygen atoms, so you would calculate the atomic mass by adding 12.01 amu (carbon) to 2x16.00 amu (oxygen) for a total of 44.01 amu.


What are three isotopes and isobars of carbon?

isotopes of carbon are atomic no. 6 mass 12 , atomic no.6 mass 13 , atomic no. 6 mass 14


How do you calculate the atomic mass of carbon?

The same way you calculate the atomic mass of other elements.


Why does sulfur and oxygen atoms have the same mass?

They don't. Sulphur has about twice the atomic mass of oxygen.


Does an oxygen atom weight the same as a hydrogen atom?

an oxygen and a hydrogen atom do not weight the same


Do carbon 12 and 14 have the same atomic mass?

No. They have different masses, but the same atomic number. Carbon-12 has a mass number of 12 and atomic number of 6, and carbon-14 has a mass number of 14 and atomic number of 6. The difference in mass number is due to different numbers of neutrons. Carbon-12 atoms have 6 neutrons and carbon-14 atoms have 8 neutrons.


What is the atom with same atomic number but different mass number?

We can find atomic mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.


Does an atom of carbon have the same mass of oxygen?

Carbon and oxygen or two different elements, with different masses.


The atomic mass is the?

The expression atomic mass is used only for isotopes; the atomic mass is the mass of an atom expressed in unified atomic mass units - (1 amu = 1/12 atomic mass of carbon-12).For elements the expression is atomic weight; the unit is the same.


Is the mass number and the atomic mass the same?

No, the Atomic Mass is the full complete mass while the mass # is just the whole number. For example: carbon's atomis mass is 12.011 and the mass # is 12.


What is the difference between two atoms of carbon having the same number of neutrons?

The difference would lie in their atomic mass. The number of neutrons in an atom affects its atomic mass, which is the sum of the protons and neutrons in the nucleus. Therefore, two atoms of carbon with the same number of neutrons would have the same atomic mass.