MCQOPTIONS
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| 1. |
In \[_{88}R{{a}^{226}}\]nucleus, there are |
| A. | 138 protons and 88 neutrons |
| B. | 138 neutrons and 88 protons |
| C. | 226 protons and 88 electrons |
| D. | 226 neutrons and 138 electrons |
| Answer» C. 226 protons and 88 electrons | |