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What is The atomic weight of an atom reflects the average number of?
Wiki User
∙ 11y ago
the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.
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∙ 8y ago
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∙ 13y agoWiki User
∙ 14y agoprotons and neutrons
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∙ 11y agoprotons, neutrons and electrons
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What is the atomic weight of gold and lead?
The atomic number of lead, Pb, is 82. Its atomic mass depends on the isotope, as the number of electrons can vary. Its atomic weight (average relative mass ) on the periodic table is 207.2.
What does the number below each element's symbol represent?
100% sure its weight
What elements on the periodic table are usually identified with three things?
Symbol, atomic number, and atomic weight.
An average of the masses of all the naturallly occurring isotopes of 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.
What is the number in front of a chemical formula called-?
atomic number or atomic weight. Subscript: atomic number, superscript: atomic weight: 94Pu239 or 239Pu
Is the atomic number and the atomic weight the same?
No, the atomic number is the number of protons and electrons in a given element. The atomic weight is the weighted average of the isotopes in a natural environment.
Which is the average of the mass number of an element isotpes?
The atomic weight or atomic mass.
Is the mass and atomic mass the same?
No. The atomic weight is the number on the Periodic Table and is a weighted average of the atomic masses.
The atomic mass of an element is determined by its total number of?
Protons. This determines what material the element is.
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.
Is the atomic weight the same as the atomic number?
No, the atomic number is the number of protons that an atom contains. Atomic weight is the number of protons and neutrons.
How is the mass number different from the 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.
What is the number of neutorns in nitrogen?
To find the number of neutrons, all you need to do is round the atomic weight to the nearest whole number. The atomic weight of nitrogen is 14.007, or about 14. The atomic weight is basically the average number of particles in an atom's nucleus. What particles are located in the nucleus?? The protons and the neutrons. So, all you have to do is subtract the number of protons from the atomic weight and you get the neutrons!!HERE'S HOW YOU DO IT:Nitrogen's atomic # = 7Nitrogen's atomic mass = 14Neutrons + Protons = Atomic Mass so... 14-7=7The number of neutrons is 7.
How was is the atomic number and the atomic weight of uranium found?
Atomic number of uranium: 92 Atomic weight of uranium: 238,02891
Atomic weight and atomic number of copper?
Its atomic number is 29 and its standard atomic weight is 63.5 g/mol.
What is the number of neutrons in an atomic number?
Subtract the atomic number from the atomic weight.
What does the atomic weight of an atom represent?
Atomic weight is sum of the number of protons and neutrons in the nucleus of an atom. Protons and neutrons, as members of the nucleus, are sometimes called nucleons. The atomic weight is sometimes said to be the nucleon number.The relative atomic mass (Ar) (also known as atomic weight and average atomic mass) is the average of the atomic masses of all the chemical element's isotopes as found in a particular environment, weighted by isotopic abundance. This is frequently used as a synonym for the standard atomic weightand it is not incorrect to do so since the standard atomic weights are relative atomic masses, although it is less specific to do so. Relative atomic mass also refers to non-terrestrial environments and highly specific terrestrial environments that deviate from the average or have different certainties (number of significant figures) than the standard atomic weights.A link is provided to the Wikipedia article on atomic weight.
