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Informally, Atomic Mass is the number of protons and neutrons. Formally, atomic mass is normalized to the mass of Carbon-12, because the mass of the proton and the mass of the neutron are not exactly equal.

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Which term is used to define define the way the mass of subatomic particles is described?

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Atomic mass.


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What term is used to define the way the mass of subatomic particles is described'?

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Atomic Mass units


What term is used to define the way the mass of subatomic particles is described?

The atomic mass or mass of an atom is locaed at the bottom of a sqaure on the periodic table. The atomic mass= atomic number (protons/neutrons)+electrons. Enable to find the number of electrons you must


Chemists define gram atomic mass as the number of grams of An element numerically equal to the?

atomic weight


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 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