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The atomic number represents the number of protons in an atom's nucleus, determining the element's identity. The mass number is the sum of the protons and neutrons in an atom's nucleus, giving the atom its mass.

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Q: What does the term mean atomic number mass number?
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What term best describes the sum of the number of protons and neutrons in an atom?

Atomic mass or mass number.


What does the term atomize mean?

The atomic radius is the same thing as the Atomic Mass.


What are the relative atomic mass and the atomic number?

Atomic number:- the number of a chemical element in the periodic table of Mendeleev- a number equal to the number of protons in the atomic nucleus- a number equal to the number of electrons in the neutral atomRelative atomic mass: the mass of an isotope expressed in atomic mass units(1 amu= 1/12 atomic mass of the isotope 12C).For chemical elements the term atomic weight is reccomended by IUPAC.


What is the mass number minus the atomic number called?

The difference between the mass number and the atomic number is called the number of neutrons in an atom.


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

Atomic Mass units =]


What term would you use to classify the two substances of how their atomic mass and atomic number?

They are isotopes.


Which term describes the sum of the number of protons and neutrons in an atom?

when you could check in most of atoms that we have you will see that the sum of protons and electrons equals to or is called the atomic weight or atomic mass...that is if you add protons to electrons you have your atomic mass.


What can you infer about two substances that have the same atomic number but different atomic mass what term would you use to classify the substance?

They are isotopes. They are the same element with a different amount of nuetrons, which can be determined depending upon the Atomic Mass and the atomic number, which results in the changed atomic mass.


What is the term for atoms of the same element that differ in their mass numbers?

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

The term used to define the way the mass of subatomic particles is described is "rest mass." Rest mass is the mass of an object when it is not in relative motion to an observer, and it is an intrinsic property of particles.


What term best indicates the total number of neutrons and protons in a particular isotope of an element?

The term that best indicates the total number of neutrons and protons in a particular isotope of an element is the mass number. It is represented by the sum of the number of protons and neutrons in the nucleus of an atom.


What is the term for a symbolic method of expressing the composition of an atomic nucleus?

The term is nuclear notation or nuclear symbol. It is a shorthand way to represent the composition of an atomic nucleus, indicating the chemical element symbol, mass number, and atomic number of a particular nucleus.