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Why is the atomic mass scale also called the relative atomic mass scale?

All atomic masses are determined by comparing them to the mass of an atom of carbon12. One atomic mass unit equals one twelfth the mass of an atom of carbon12. That's why its called relativeatomic mass.


How do you define the atomic mass of an element?

The total mass of the atom. In other words the total mass of the protons and neutrons of an atom


Why atomic mass of an atom is define as relative atomic mass?

It is calculated as the ratio of the mass of one atom of an element to one twelfth of the mass of an atom of carbon-12. In fact, the weighted average of the mass of an atom of an element - weighted according to its isotopic abundance.


One twelfth the mass of a carbon 12 atom is used to define an?

One twelfth the mass of a carbon 12 atom is used to define an atomic mass unit (amu) or unified atomic mass unit (u). This unit is used to express atomic and molecular weights on a scale relative to the mass of a carbon-12 atom, making it a common reference point in chemistry.


How the mass of an atom is organized?

The mass of an atom is primarily concentrated in its nucleus, which is composed of protons and neutrons. Electrons, which have much less mass, orbit the nucleus in energy levels. The total mass of an atom is determined by the combined mass of its protons, neutrons, and electrons.


What the smallest particle in a atom?

Size on the scale of atoms is very hard to define. The electron has zero mass. Quarks have varying amounts of mass.


What isotope defines the atomic mass unit?

Carbon-12 isotope is used to define the atomic mass unit, which is equal to 1/12th of the mass of a carbon-12 atom.


Is an oxygen atom have twice the mass of a sulphur atom?

No, an oxygen atom does not have twice the mass of a sulfur atom. An oxygen atom has a mass of approximately 16 atomic mass units (amu), while a sulfur atom has a mass of approximately 32 amu. Therefore, a sulfur atom has twice the mass of an oxygen atom.


How many years would it take for the mass of a 1.00 g sample of carbon12 to be reduce to 0.125g?

It will take practically forever. Carbon-12 is not radioactive.


What is the standard for atomic mass unit called?

One twelfth (1/12) the mass of a carbon-12 atom is one atomic mass unit (amu, or just u).


What represents most of an atom's mass?

The nucleus of an atom represents most of an atom's mass.


The relative atomic mass of an atom can be found by comparing the mass of the atom to the mass of?

The Hydrogen atom. Beware, Hydrogen has an atomic mass based on one proton, as it doesn't have a neutron. So Helium has a mass of four times Hydrogen.