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The average atomic weight (not mass for elements) of a chemical element is calculated taking into account the isotopic composition of this element and the atomic masses (not weight for isotopes) of these isotopes.
Daryl Collins
Wiki User
∙ 13y agoThat can be found at the bottom of each element in its box, the number usually has decimals.
The number shown on a Periodic Table is the average mass of one mole of the element. A mole is 6.0221415 × 1023atoms
What this means is; each atom weighs x * 6.0221415 × 1023atoms to get the mass shown in a periodic table.
To get the average mass of one ATOM of an element, we take the average mass from the periodic table and divide by the number of atoms (6.022x1023) to get the mass per atom.
our formula is mass/atoms=mass per atom (or grams per atom)
Example: Zinc is Zi on the table it has an average mass of 65.38g
Taking 65.38g/6.022x1023atoms = 1.08x10-22 g/atom
Wiki User
∙ 12y agoThe average atomic weight of a chemical element take into account the isotopic composition and the atomic masses of these isotopes.
Wiki User
∙ 11y agoThis is the atomic weight.
Wiki User
∙ 6y agoThis is the atomic weight.
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The molar mass of an element is equal to?
The element's average atomic mass.
How many atoms are there in an element?
This depends on the mass of this element.
What is equal to the mass of the atom?
the atoms of different elements weigh different.it depends as to which element you are referring to.for example an element with the atomic mass 4 can be matched by 2 atoms of a lighter element with the atomic mass 2
Which is the average of the mass numbers of an element's isotopes?
the Atomic Mass
If 6.02 x 1023 atoms of element y have a mass of 83.80 g what is the identity of y?
6.02 x 1023 atoms of an element is one mole of that element. The mole, based on Avagadro's number, is defined as the number of Carbon atoms that would have a mass of 12 grams. This is a scaling factor related to atomic mass. Krypton has an atomic mass of 83.8, so if a mole of an unknown element is 83.8 grams, then that element is Krypton.
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.
The average atomic mass grams shown on the periodic table for each element is also the mass of?
one mole of atoms of the element
The molar mass of an element is equal to?
The element's average atomic mass.
What is the number determined by the average mass of naturally occurring atoms of a given element?
I believe it is a mole
How many atoms are there in an element?
This depends on the mass of this element.
If the atomic mass of an element is x what is the mass in grams of 6.021023 atoms of the element?
6.021023x
The mass of any two atoms of the same element is always the same?
The masses of any two atoms of the same element are not always the same. Atomic mass (the mass you see on the periodic table) is just a weighted average of all of the weights of all of the different isotopes of an element.
Can the atomic mass of individual atoms of an element vary?
No, the atomic mass of individual atoms of an element does not vary. The atomic mass listed on the periodic table is an average value that takes into account the different isotopes (atoms with different numbers of neutrons) of the element and their abundance in nature. Individual atoms of the same element will have the same atomic mass.
What is the average mass of the isotope of an element?
the average mass numbers of the isotopes of an element
What is equal to the mass of the atom?
the atoms of different elements weigh different.it depends as to which element you are referring to.for example an element with the atomic mass 4 can be matched by 2 atoms of a lighter element with the atomic mass 2
What does an element's atomic mass tell about the atoms that make up that element?
Atomic Mass is the no. of protons+no. of nuetron
Are all sample of elements are composed of atoms with same atomic mass?
All atoms in a pure sample of one element have the same mass. The atoms in a different element have a different mass. Different atoms is what makes different elements.
