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प्रश्न
An element has its electron configuration as 2, 8, 1. Now answer the following questions:
- What is the atomic number of this element?
- What is the group of this element?
- To which period does this element belong?
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उत्तर
- The atomic number of this element is 11.
- The group of this element is 1.
- This element belongs to the three periods.
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संबंधित प्रश्न
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| 1) 2, 2 | a) 1 |
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Group
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| Element | A | B | C | D |
| Electronic configuration | 2, 1 | 2, 8 | 2, 8, 1 | 2, 8, 8 |
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