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Which of the following representations is correct for an atom X with 28 electrons and ...

Which of the following representations is correct for an atom X with 28 electrons and 30 neutrons?
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  • A \(^{30}_{28} X\)
  • B \(^{28}_{30} X\)
  • C \(^{58}_{30} X\)
  • D \(^{58}_{28} X\)
Correct Answer: Option D
Explanation:
\(X^{A = p + n = 28 + 30 = 58}_{Z = P = E = 28}\)

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