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because atoms from each element is different. relative masses of atoms is like their identity. it gives information on their weight, their density, their number of subatomic particles(protons and neutrons) and etc, etc.
most importantly, relative masses of atoms allows chemist worldwide to accurately communicate with each other the amount as well as the composition of compound used in their reactions.
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∙ 13y ago
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∙ 9y agoIt is important to know the relative masses of atoms since this is what will serve as their identity. This will give you all the necessary information like elements present, weight and density among others.
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∙ 12y agoBecause the actual masses of atoms are WAY to small and VERY difficult to work with!
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∙ 8y agobecause, the mass of an atom is too small to be easily used as a point of reference. Comparing it to the C-12 atom (so relative Atomic Mass) is much easier. I think this is the answer.
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∙ 12y agoThe atomic mass could be used to identify an element.
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∙ 14y agoElements have isotopes with different mass numbers for same element.The average isotopic masses gives atomic mass of the element as a whole.hencethe term average atomic mass.
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∙ 12y agoThe actual masses of atoms are very small and difficult to work with.
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Why do chemists use relative mass of atoms compared to a reference isotope rather than the actual masses of the atoms?
i need a answer goish just tell me Edit :: This looks suspiciously like a homework question. It wouln't be called the "Average Atomic Mass" if it wasn't the average of all the isotopes, now wouldn' it?
Who was The first attempt at publishing a list of relative atomic masses?
John Dalton tried to work out the relative masses of atoms; but his calculations were wrong, although the principle was correct. He was, however, the first to establish a table of atomic masses with hydrogen, the lightest atom, as the standard.
What occurs for two atoms to be isotopes of each other?
Two atoms are considered different isotopes of their element if they have different masses. This mass comes from the neutral-charged neutrons differing.
In what way are atoms of oxygen most different from and atoms of nitrogen?
They have way different masses!!
Do atoms have the same properties as an element?
All atoms are elements. Single (or even a "few") atoms do not have the properties of large masses of atoms.
Why do chemists use relative mass of atoms compared to a reference isotope rather than the actual masses of the atoms?
i need a answer goish just tell me Edit :: This looks suspiciously like a homework question. It wouln't be called the "Average Atomic Mass" if it wasn't the average of all the isotopes, now wouldn' it?
Why do chemist use relative masses of atoms compared to a reference isotope rather than the actual masses of atoms?
because, the mass of an atom is too small to be easily used as a point of reference. Comparing it to the C-12 atom (so relative Atomic Mass) is much easier. I think this is the answer.
Who was The first attempt at publishing a list of relative atomic masses?
John Dalton tried to work out the relative masses of atoms; but his calculations were wrong, although the principle was correct. He was, however, the first to establish a table of atomic masses with hydrogen, the lightest atom, as the standard.
How do you calculate Mr?
To calculate the relative molecular mass (Mr) of a molecule, add up the atomic masses of all the atoms in the molecule as shown in its molecular formula. For example, the Mr of H2O (water) is calculated by adding the atomic masses of 2 hydrogen atoms and 1 oxygen atom.
Why is it better to arrange elements in terms of their electronic structure and not in order of their relative atomic masses?
It's not better to do that for everyone, but it certainly is for chemists, since the electron structure of atoms is the building blocks for pretty much...everything they study. Nuclear physicists would surely rather arrange the elements based on atomic masses, for...something I'm sure. Fortunately, the Periodic Table of the Elements has them arranged both ways at the same time, whew!
Why chemists must work in the macroscopic world to find out about the submicroscopic atom?
the chemists goal is to understand the atoms that compose it
What kind of scientists studies elements atoms and molecules?
Chemists.
Do chemists count atoms by weighing matter?
Yes, it is possible.
Why is the mass numbers of isotopes exact whole numbers but the relative masses of most Atoms are not exact whole numbers?
Relative atomic massisthe ratio of the averagemassofatomsof anelementto 1/12 of the mass of an atom ofcarbon-12. The mass number of an isotope is the sum of protons and neutrons in the atoms of the isotope.
An atom of helium has a mass about four times greater than that of an atom of hydrogen Which choice makes the correct comparison of the relative numbers of helium and hydrogen atoms in equal masses o?
the number of helium and hydrogen atoms is the same
What part Dalton atomic theory was later proved to be incorrect?
Today we know that atoms can be destroyed to nuclear reactions but not by chemical reactions.
How do the masses of the atoms produced as a result of afusion reaction differ from the masses of the atoms that result from a nuclear fission reaction?
The products are very different.
