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Difference Between Atomic Mass and Atomic Number

Atomic mass and an atomic number of elements are said to closely related because whenever the atomic number is high, the atomic mass is also said to be high. But again that brings us to the question, what is the difference between atomic mass and atomic number? To know the answer, let’s look at some key DIFFERENCES below.

Difference Between Atomic Mass and Atomic Number

Atomic Mass. Atomic Number

Atomic mass is associated with the number of neutrons and protons that are present in a particular nucleus of an element.

Atomic number is usually the number of protons present in an element’s nucleus.

It is the AVERAGE weight of an element. It is the total number of nucleons in the atom’s nucleus.

Atomic mass is denoted by A The letter Z is used to represent an atomic number.

Atomic mass cannot be be used to define the type of element. Atomic number mainly helps in the classification and identification of an element.

Atomic mass is also used to CLASSIFY different isotopes of the same element Isotopes only share the same atomic number.

Atomic mass is MOSTLY measured using atomic mass unit (amu). Atomic number is just a digit that is used to place elements in a periodic table.

These are some differences between atomic mass and atomic number.