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Which of the following pairs represents isobars?A. `._(19)K^(40)` and `._(11)Na^(23)`B. `._(2)He^(3)` and `._(2)He^(4)`C. `._(12)Mg^(24)` and `._(12)Mg^(25)`D. `._(19)K^(40)` and `._(20)Ca^(40)` |
Answer» Correct Answer - D Isobars have same atomic mass number. |
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