MCQOPTIONS
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| 1. |
The atomic number of an element is 11 and its mass number is 23. The correct order representing the number of electrons, protons and neutrons respectively in this atom is |
| A. | 11, 11, 12 |
| B. | 11, 12, 11 |
| C. | 12, 11, 11 |
| D. | 23, 11, 23. |
| Answer» B. 11, 12, 11 | |