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The Atomic Mass of an element is the numerical average of all the masses of the naturally occurring isotopes of that element proportionately. Man made elements do not count in supposedly.
IE: If we have an element with atomic weight 100 and we have an isotope of that element with atomic weight 102 and if they occurred equally in nature then the Atomic Mass would be 101.
Waldo Mayer
Leonora Medhurst
The Atomic Mass of an element is the numerical average of all the masses of the naturally occurring isotopes of that element proportionately. Man made elements do not count in supposedly.
IE: If we have an element with atomic weight 100 and we have an isotope of that element with atomic weight 102 and if they occurred equally in nature then the Atomic Mass would be 101.
Wiki User
∙ 14y agoThe mass of a proton or a neutron is almost equal to 1 amu. This is not a coincidence-the unit was defined tht way. The atomic mass unit is defined as one-twelfth the mass of a carbon atom containing six protons and six neutrons.
Wiki User
∙ 14y agoElements consists of several different isotopes which have the same number of protons but different numbers of neutrons. As such they each have different isotopic masses. The atomic mass is worked out by multiplying the isotopic masses by the proportion of the element they make up and adding these values together. For example with chlorine:
Chlorine has two main isotopes chlorine-35 and chlorine-37. 35Cl makes up 75% and 37Cl makes up 25% of natural chlorine.
To work out the atomic mass you do:
35 * 75% = 26.25
37 * 25% = 9.25
26.25 + 9.25 = 35.5
So chlorine has an atomic mass of 35.5 grams per mole
Wiki User
∙ 12y agoBecause the masses of all natural isotopes of an element are involved in the calculus of the atomic weight (for elements atomic weight is the correct expression; atomic massis an expression used correctly only for isotopes); and the atomic masses of isotopes are not integers.
Wiki User
∙ 9y agoThe atomic number of an element is the number of protons, which is a fixed number for that element. But each atomic nucleus (aside from Hydrogen) also contains some neutrons. The number of neutrons is at least as high as the number of protons, and normally higher, but the number of neutrons is NOT fixed; there are many "isotopes" of atoms within an element, which contain more or fewer neutrons.
The Atomic Mass is a weighted average of all the atoms, calculated based on the number of protons and neutrons in the nucleus, and the percentage of the total mass in each isotope.
Wiki User
∙ 12y agoElements all have multiple isotopes with individual atomic weights so the mass is determined by the weighted mean of all of the isotopes.
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What is atomic mass an average of?
"Atomic Mass" is not an average, it is tje total mass of all the electrons, protons and neutrons in an atom of an element. AVERAGE Atomic Mass is the AVERAGE of the Atomic Masses of all of the Isotopes of an element according to their natural proportions.
Average weight of an element expressed in atomic mass units?
Average weight of an element expressed in Atomic Mass units.
What is the difference between average atomic mass and atomic mass?
What is the average atomic mass of an element is the average atomic masses of what kind of isotopes?
average atomic massof an element=(Atomic mass of first isotope X % of that isotope) + (Atomic mass of second isotope X % of the second isotope)
What is the average atomic mass Ga?
Silver is a meta element. Atomic mass of it is 108.
Which is the average of the mass numbers of an element's isotopes?
the Atomic Mass
What is atomic mass an average of?
"Atomic Mass" is not an average, it is tje total mass of all the electrons, protons and neutrons in an atom of an element. AVERAGE Atomic Mass is the AVERAGE of the Atomic Masses of all of the Isotopes of an element according to their natural proportions.
Average weight of an element expressed in atomic mass units?
Average weight of an element expressed in Atomic Mass units.
The average atomic mass of an element is the average of the atomic masses of its?
The average atomic mass of an element is the average of the atomic masses of its isotopes (that is a weighted average). You have to take into account the abundance of each isotope when they do your averaging.
What is the difference between average atomic mass and atomic mass?
What is the average atomic mass of an element is the average atomic masses of what kind of isotopes?
average atomic massof an element=(Atomic mass of first isotope X % of that isotope) + (Atomic mass of second isotope X % of the second isotope)
What is the average atomic mass Ga?
Silver is a meta element. Atomic mass of it is 108.
Why is there an average atomic mass?
There is an average atomic mass because all atoms of the same element do not have the same amount of neutrons (isotopes), therefore variations in atomic mass exist. The average atomic mass of an element is the estimated average of all the atoms of the same element, given the average of different isotopes in a scientific sample.
What does the atomic mass tell you about the atom?
The Atomic Mass of an element tells you the average mass of an atom in the element.
Which is the average of the mass number of an element isotpes?
The atomic weight or atomic mass.
What is the weighed average mass of an atom of an element?
I'm pretty sure its the atomic mass, cause i have the same question for Integrated Science honors
The weighted average of the masses of all the naturally occurring isotopes of an element is the what?
Atomic weight or atomic mass used in stoichiometric calculations.
