Which of the following is the pair of isobars?
Correct answer: D. 30H15 and 30Si14
- A. 1H1 and 2H1
- B. 12C6 and 13H6
- C. 2H1 and 3H1
- D. 30H15 and 30Si14
Explanation
Isobars are atoms of different elements having the same atomic mass but different atomic numbers. They have the same number of nucleons (protons + neutrons). They have different numbers of protons (or electrons).
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