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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.
What is the average of the mass numbers of an elements isotopes?
the Atomic Mass
What is an average of the masses of all the isotopes that occur in nature For an element?
The weighted average for all isotopes that occur in nature for an element is its atomic weight listed on the Periodic Table of the elements.
Why is the average mass used when calculating grams of a substance?
the elements in the substance are mixtures of their isotopes
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.
How do you calculate the atomic mass of an element containing a mixtures of isotopes?
weighted average of the various iisotopes
Why elements don't have whole numbers?
do you mean the why is the average atomic mass not a whole number? because if that is your question, then the answer is that each element has multipal isotopes and the mass you see on the periodic table is the average of all the isotopes together. So there has to be a decimal on the periodic table of elements
Why cant you add the average masses of each of the isotopes and divide to get overall average of the atoms?
Because the isotopes do not appear in equal amounts. This is hardly surprising since many isotopes experience radioactive decay and change to other elements after decay while stable isotopes persist - thus stable isotopes will usually dominate as the most common isotopes for individual elements with those with the longest half-lifes being more common than those with shorter half-lifes. Of course when you get into the heaviest elements there don't seem to be any stable isotopes so those with longest half life dominate.
How do the decimal places on the atomic masses of elements realate to isotopes?
The atomic mass of an element is the weighted average of masses of the isotopes of the element, weighted in proportion to their abundance.
Is the atomic mass used for the mass of an element which has isotopes?
Yes, it must be used as all elements have one or more isotopes and all elements have an atomic mass.
The average mass of all the known isotopes of an element is what?
The known weighted-averagemass of all the naturally occurring* isotopes for an element is the atomic mass of the element.____________________*This is not the same as "all the known isotopes", becausemost elements have known isotopes that are not naturally occurring.
Why isn't the atomic mass of most of the elements on the periodic table an integer and not a decimal?
The atomic mass of an element is not always an integer because it considers the average mass of all isotopes of that element, taking into account their abundance. Since isotopes have different masses, the weighted average can result in a non-integer value. Additionally, the presence of isotopes with different masses means that the atomic mass is a weighted average influenced by the abundance of each isotope.
