Answer:
Three atoms of magnesium can have different masses because each of the three atoms has a different number of neurons.
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The differences in masses of the three magnesium atom is due to there differences in there neutron number
Isotopes are members of an element that all have the same number of protons but different numbers of neutrons.
These are 2 or mores type of atoms that have the same atomic number but different nucleon numbers due to the different number of neutron in the nuclei.
The reason why three atoms of magnesium has different masses is due to Isotropy.
The differences in masses of the three magnesium atom is due to there differences in there neutron number.
The differences in masses is caused by the differences of their neutron number.
learn more about isotopy here: https://brainly.com/question/25305592?referrer=searchResults
