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प्रश्न
Match the following.
| 1. | Valency | Fe |
| 2. | Neutral particle | Proton |
| 3. | Iron | Electrons in the outermost orbit |
| 4. | Hydrogen | Neutron |
| 5. | Positively charged particle | Monovalent |
जोड़ियाँ मिलाइएँ
उत्तर
| 1. | Valency | Electrons in the outermost orbit |
| 2. | Neutral particle | Neutron |
| 3. | Iron | Fe |
| 4. | Hydrogen | Monovalent |
| 5. | Positively charged particle | Proton |
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