MCQOPTIONS
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| 1. |
Number of protons, neutrons and electrons in the element\[_{89}{{\text{X}}^{\text{231}}}\]is |
| A. | 89, 89, 242 |
| B. | 89, 142, 89 |
| C. | Sunflower plant |
| D. | 89, 231, 89 |
| Answer» C. Sunflower plant | |