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The Atomic Mass is an average, allowing for the relative abundances of different isotopes.

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Q: Atomic mass differnet from the atomic mass number why is that?
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Related questions

What is atomic mass and atomic number for radium?

The atomic number is 88 and the atomic mass is 226


What is the atomic mass number of krypton?

83.98 amu is the Atomic Mass, 36 is the atomic number.


What do you do with an atomic number and an atomic mass?

The atomic number is the number of a chemical element in the periodic table of Mendeleev; the atomic number is equal to the number of protons and electrons. The atomic mass is the mass of an atom expressed in relative atomic mass units.


What is phosphorus' atomic number and atomic mass number?

Atomic number for p is 15. atomic mass for p is 31.


What is the atomic no and atomic mass of graphite?

Atomic number 6, atomic mass 12.


How much is the atomic mass and atomic number for corbon?

The atomic mass of carbon is about 12.01 atomic mass units. The atomic number of carbon is 6, indicating the number of protons in its nucleus.


What is the atomic mass and atomic number of Kr in the periodic table?

The atomic mass of Kr (Krypton) is 83.798 amu, and its atomic number is 36.


Do isotopes have the same atomic number and the same atomic mass?

No: They have the same atomic number but not the same atomic mass.


What do you get when you subtract atomic number from atomic mass?

mass #-atomic#=# of neutrons


What is bigger the atomic mass or atomic number?

Atomic no.=no. of protons Atomic mass=no. of protons+no. of neutrons Hence, atomic mass is greater


What is atomic number and atomic mass or weight?

Atomic number is the number of protons in an atom and atomic mass is the sum of the number of protons and neutrons.


What is the atomic number and mass of boron?

The atomic number of boron is 5, which means it has 5 protons in its nucleus. The atomic mass of boron is approximately 10.81 atomic mass units.