MCQOPTIONS
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MCQOPTIONS
| 1. |
What is the order of the radius of an electron orbit in a hydrogen atom? |
| A. | 10<sup>-8</sup> m |
| B. | 10<sup>-9</sup> m |
| C. | 10<sup>-11</sup> m |
| D. | 10<sup>-13</sup> m |
| Answer» D. 10<sup>-13</sup> m | |