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Since you have isotopes of elements. Isotopes are elements with different number of neutrons hence why the different atomic masses for the same elements.

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Each element has its own characteristic atom in which a. the atomic weight is constant b. the atomic number is constant c. the mass number is constant?

b. the atomic number is constant. The mass number is not constant because there are isotopes of an element that have the same number of protons but different number of neutrons. Likewise, there are isotopes of the same element with different atomic weights.


What is the mass number of the atom Mercury?

Mercury is a metal element. Mass number of it is 200.


The number of protons in an atom of an element determines the atom's what?

Mass Number


Distinguish between the atomic number and mass number of an element?

The atomic number of an element is the number of protons in the nucleus of each atom of the element. Mass number is a property of a particular isotope of the element rather than of the element itself: The mass number is the sum of the numbers of protons and neutrons in the nucleus of each atom of the isotope.


Atomic mass is the number of what in the nucleus?

Atomic mass is the sum of protons and neutrons that are present in the nucleus While the number of protons and electrons remain constant in the neutral atom, the number of neutrons may vary within different atom species of the same element. As a result, the atomic mass for one atom may be different from another atom of the same element if the number of neutrons varies.


The mass number for an atom of an element when stated with the element's symbol indicates that you have an?

The mass number for an atom of an element, when stated with the element's symbol, provides the total number of protons and neutrons in the nucleus of that atom.


What is a mass number atomic mass number?

The atomic number is the number of protons in an atom. This number is fixed and determines what element that atom is. The Atomic Mass is the mass of an atom and is roughly equivalent to the number of protons plus the average number of neutrons that atoms of that particular element.


What is an atomic number and a mass number?

The atomic number is the number of protons in an atom. This number is fixed and determines what element that atom is. The atomic mass is the mass of an atom and is roughly equivalent to the number of protons plus the average number of neutrons that atoms of that particular element.


Is mass number the combining capacity of an element?

No, mass number is the number of neutrons and protons that exist within the nucleus of the atom for a particular element. It is based on the idea that most of the mass of an atom derives from the nucleus.


What is the difference between the atomic number and atomic mass?

The atomic number represents the number of protons in an atom's nucleus. It determines the element's identity. Atomic mass is the average mass of an atom of an element, taking into account its isotopes and their abundance. It is the sum of the protons and neutrons in the nucleus.


How is the atomic number and mass number different?

The atomic number is the number of protons in the nucleus of an atom of any given element. The mass number is the number of protons and neutrons in the nucleus of an atom of an isotope of an element.


What does the atomic mass of an element represents?

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.