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प्रश्न
Which pair of atomic numbers represents elements in the same group?
विकल्प
11, 19
6, 12
4, 16
8, 17
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उत्तर
11, 19
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संबंधित प्रश्न
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| 2) Alkali metals | b) Group 17 |
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| 4) Noble gas | d) Group 1 |
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Complete the following chart.
| Shell | n | 2n2 | Electron holding capacity |
| K | ______ | 2 × 12 | 2 |
| L | 2 | ______ | 8 |
| ______ | 3 | 2 × 32 | 18 |
| N | 4 | 2 × 42 | ______ |
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Group - Period
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