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The atomic number of zinc is ___________

(a) 25

(b) 13

(c) 104

(d) 30

The question was posed to me during a job interview.

This key question is from Aircraft Steels in section Aircraft Steels of Aerospace Materials & Processes

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Correct answer is (d) 30

Explanation: The atomic number of zinc is 30. 25 is the atomic number of the element manganese. 13 is the atomic number of aluminium. Rutherfordium is the synthetic chemical element with an atomic number of 104.

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