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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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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.


What does the number on the bottom of the periodic table block mean in chlorine?

The number on the bottom of the periodic table block for chlorine, which is approximately 35.45, represents its atomic weight (or atomic mass). This value is the average mass of an atom of chlorine, taking into account the relative abundances of its isotopes. Atomic weight is measured in atomic mass units (amu) and reflects the total number of protons and neutrons in the nucleus of an atom.


How do you get the atomic number and weight?

The atomic number of an element is equal to the number of protons in its nucleus. The atomic weight is the average mass of an element's isotopes, taking into account their relative abundance. Both the atomic number and weight can be found on the periodic table for each element.


Is the atomic weight of an element is equal to the number of protons minus the number of neutrons?

No, the atomic weight of an element is not equal to the number of protons minus the number of neutrons. Atomic weight is the average weight of an element's isotopes taking into account their abundance, which includes the sum of the protons and neutrons in the nucleus.


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.


What is the difference between the atomic number and the atomic weight of the known elements as listed on the periodic table?

The atomic number of the element is the number of protons or number of electrons in an atom of the element . The atomic weight of the element is the ratio of the mass of the atom to the 1/12th of the mass of the atom of carbon 12.


The atomic weight of an element is determined by what?

The atomic weight of an element is determined by the weighted average of the masses of its isotopes, taking into account their abundance in nature. This value is typically found on the periodic table as the average atomic mass of the element.


The difference between the atomic number of an element and its atomic mass?

The atomic number of an element represents the number of protons in its nucleus, which determines its position on the periodic table and its chemical properties. The atomic mass (or atomic weight) of an element reflects the average mass of its isotopes, considering both protons and neutrons. In general, the atomic number is a whole number without units, while atomic mass is usually expressed in atomic mass units (amu).


What is Chromium's atomic weight?

Chromium has an atomic weight of approximately 51.9961 atomic mass units (amu). This value reflects the weighted average of the isotopes of chromium found in nature, primarily chromium-52, chromium-53, and chromium-54. The atomic weight is often rounded to 52.00 for simplicity in many contexts.


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.