MCQOPTIONS
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MCQOPTIONS
| 1. |
Atoms of different elements have - |
| A. | same atomic number and same electronic configuration |
| B. | different atomic number and same eletronic configuration |
| C. | different atomic number and different number of valence electrons |
| D. | same number of electrons and neutrons |
| Answer» D. same number of electrons and neutrons | |