Atom A and Atom B are not isotopes of each other because they do not contain the same number of protons. Details about isotopes can be found below.
What is an isotope?
Isotopes are two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei.
This means that isotopes of an element will possess the same atomic number but different mass numbers.
According to this question, Atom A consists of 10 protons, 12 neutrons, and 10 electrons while Atom B consists of 12 protons, 12 neutrons, and 10 electrons.
This shows that Atom A and Atom B are not isotopes of each other because they possess different mass numbers.
Learn more about isotopes at: https://brainly.com/question/11680817
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