Answer :
Final answer:
The number of protons in the given isotope ¹⁴¹₅₈Ba is 58.
Explanation:
In the given isotope ⁿ⁵⁻¹⁴Ba, the superscript number (141) represents the mass number, which is the sum of protons and neutrons in the nucleus of the atom. The subscript number (58) represents the atomic number, which indicates the number of protons in the nucleus.
Since the question asks for the number of protons, we can determine it by looking at the atomic number.
Therefore, the number of protons in this isotope is 58.
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