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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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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).


The atomic mass listed in the periodic table is the?

The atomic mass listed in the periodic table is the weighted average of the masses of all the isotopes of an element, taking into account their abundance in nature. It is measured in atomic mass units (amu) and provides an average value that reflects the isotopic distribution of the element.


How was the periodic table first organized atomic number or atomic mass?

The periodic table was first organized by atomic mass. However, after the discovery of isotopes and inconsistencies around this method, it was later rearranged based on atomic number, which reflects the number of protons in an atom's nucleus.


What is bigger the atomic mass or atomic number?

Atomic no.=no. of protons Atomic mass=no. of protons+no. of neutrons Hence, atomic mass is greater


What is the atomic mass-?

The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.


The mass of an atom usually expressed in atomic mass units is its?

Atomic mass.


What is the atomic mass of silver?

The atomic mass of silver is approximately 107.87 atomic mass units.


What is the atomic mass of aluminum?

The atomic mass of aluminum is approximately 26.98 atomic mass units.


What is The atomic weight of an atom reflects the average number of?

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.


Which has the lower atomic mass cobalt or nickel?

Cobalt has a lower atomic mass than nickel. The atomic mass of cobalt is around 58.9 atomic mass units, while the atomic mass of nickel is around 58.7 atomic mass units.


What is the atomic mass of arsenic?

The atomic mass of arsenic is approximately 74.92 atomic mass units.


What is the atomic mass of potassium?

The atomic mass of potassium is approximately 39.10 atomic mass units.