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What is the average of the mass numbers of an elements isotopes?
the Atomic Mass
Why is the atomic mass of an element an average?
The atomic mass is an average because most elements consist of a mixture of isotopes.
Elements are ordered according to what?
average atomic mass number
Why do elements have a listed average atomic mass and not just atomic mass?
Because most naturally occurring elements are a mixture of isotopes, each having a different atomic mass. These individual isotopic atomic masses must be combined accounting for the amount of each isotope of the element is present to get a weighted average atomic mass.
What is the difference between the atomic number and average atomic mass?
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.
Do the elements in a row on the periodic table have the same average atomic mass?
no.
How would the modern periodic table would be different if elements were arranged by average atomic mass instead of by atomic number?
how would the modern Periodic Table be different if elements were arranged by average Atomic Mass instead of by atomic number
What elements has an average atomic mass nearest to 31?
It's is element
What is the average mass of the mixture of an elements isotopes?
All of the isotopes in an element's atomic masses divided by the amount of isotopes there are is the weighted-average mass of the mixture of an elements isotopes.
Elements average atomic mass?
The average atomic mass of an element is the weighted average of the masses of the isotopes of that element, taking into account their natural abundance. It is usually expressed in atomic mass units (u) and can be found on the periodic table for each element. The average atomic mass provides a more accurate representation of the mass of all the isotopes of that element.
Why is the average atomic mass of most elements the same in every sample that has been analyzed?
The average atomic mass of elements remains consistent across samples because it is calculated based on the weighted average of an element's naturally occurring isotopes and their abundances. Since isotopic ratios are generally uniform in nature, the average atomic mass does not vary significantly from one sample to another. Additionally, atomic mass is defined relative to the standard atomic mass unit, allowing for a reliable comparison across different samples. Thus, regardless of where or how a sample is taken, the average atomic mass remains the same.
Which number is the atomic mass?
The atomic mass of an element is average of the number of protons in an atom plus the number of neutrons. For example, if you look at a periodic table of elements, Hydroge has the atomic mass of 1.0079.
