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प्रश्न
Match the elements A to E in List 1 with their valencies in List 2 and with their nature in List 3.
| List 1 [Elements] | List 2 [Valency] | List 3 |
| A: At. no. 7, Mass no. 14 | 1. −3 | X: Metal |
| B: Elec. conf. 2, 8 | 2. +1 | Y: Non-metal |
| C: Neutrons 14, electrons 13 | 3. +3 | Z: Noble gas |
| D: Neutrons 22, protons 18 | 4. +2 | |
| E: Elec. config. 2, 8, 1 | 5. 0 |
जोड़ियाँ मिलाइएँ
उत्तर
| List 1 [Elements] | List 2 [Valency] | List 3 |
| A: At. no. 7, Mass no. 14 | 1. −3 | Y: Non-metal |
| B: Elec. conf. 2, 8 | 5. 0 | Z: Noble gas |
| C: Neutrons 14, electrons 13 | 3. +3 | X: Metal |
| D: Neutrons 22, protons 18 | 5. 0 | Z: Noble gas |
| E: Elec. config. 2, 8, 1 | 2. +1 | X: Metal |
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