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| 1. |
Which of the following pairs are isotopes? a)Oxygen and ozoneb)Ice and steamc)Nitric oxide and nitrogen dioxided)Hydrogen and deuterium |
| Answer» ISOTOPES are ELEMENTS with same atomic number but different MASS number. Hydrogen and Deuterium are isotopes with same atomic number but different mass number. Hydrogen have atomic number 1 and mass number 1 where as deuterium have atomic number 1 but mass number 2. | |