How does an element's
atomic mass compare to the mass number of its most abundant
isotope?
2 answers:
Atomic mass is an average mass of an element whereas the mass number is a mass of a single atom of an element.
Explanation:
Atomic mass
- It is the average weight of the element's atom.
- it depends upon the atomic mass of isotopes and their abundances.
- It is calculated by considering all the isotopes of an element and its abundance.
- It has decimal as it deals with the average weight of an element
Mass number
- It is the weight of nucleons of the atom.
- it does not depend upon the atomic mass of isotopes and their abundances.
- It is calculated separately for each atom of an element.
- It is a simplified number that is no decimal is present.
So, from this, we can conclude that atomic mass is an average mass of an element whereas the mass number is a mass of a single atom of an element.
Learn more about atomic mass and mass number here:
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Answer:
It's very similar to it
Explanation:
Because the atomic mass in this situation is an average so it represents all isotopes in this situation due to their abundance
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hope this help
The answer to your question is climate.
Magnesium (Mg) has atomic number 12 with electronic configuration :

The valence shell of Mg is 3s which has 2 electrons as shown in above electronic configuration.
Therefore, A = 3 and B =2
It is the law of conservation of energy