Base your answers to questions 22, 23, and 24 on the information below and on your knowledge of chemistry. The diagrams represent four different atomic nuclei.
22. Identify the element that has atomic nuclei represented by nucleus 1.
23. Determine the mass number of the nuclide represented by nucleus 2.
24. Explain why nucleus 2 and nucleus 4 represent the nuclei of two different isotopes of the same element.
Answers: 2
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