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Atoms of different elements have
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- same atomic number and same electronic configuration
- different atomic number and same eletronic configu-ration
- different atomic number and different number of valence electrons
- same number of electrons and neutrons
- same atomic number and same electronic configuration
Correct Option: C
Each element’s atoms have a different number of protons, neutrons, and electrons, which is why they have different atomic numbers, difference in valence electrons and other properties. Their reactivity also varies because of the number and activeness of the electrons in the atom.
