Answer :
Final answer:
The number of nucleons in the given isotope is 199.
Explanation:
The number of nucleons in the given isotope is 199
The given isotope is ¹⁴¹₅₈Ba, which means it is an isotope of Barium (Ba) with an atomic number of 58. The superscript number 141 represents the mass number of this isotope, which is the sum of the number of protons and neutrons in the nucleus.
To find the number of nucleons, we need to look at the mass number. In this case, it is 141. Therefore, the number of nucleons in this isotope is also 141.
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