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प्रश्न
Write the names of following elements Na, C, Kr, U, Ra, Fe, Co.
सारिणी
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उत्तर
| Symbol | Element |
| Na | Sodium |
| C | Carbon |
| Kr | Krypton |
| U | Uranium |
| Ra | Radium |
| Fe | Iron |
| Co | Cobalt |
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