PDF chapter test TRY NOW
Match the elements of the atoms with their valency:
Answer variants:
\(He\)
\(O\)
\(Li\)
\(N\)
| S.No. | Valency | Elements |
1. | \(0\) | |
2. | \(1\) | |
3. | \(2\) | |
4. | \(3\) |
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