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प्रश्न
Which of the following statements about the Modern periodic table is correct?
विकल्प
18 horizontal rows are known as Periods.
7 vertical columns are known as Periods.
18 vertical columns are known as groups.
7 horizontal rows are known as groups.
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उत्तर
18 vertical columns are known as groups. and 7 horizontal rows are known as groups.
Explanation:
The Modern Periodic Table is systematically organised as follows:
- Groups: There are 18 vertical columns known as groups.
- Periods: There are 7 horizontal rows known as periods.
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संबंधित प्रश्न
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| Group No. → | 1 | 2 | 13 | 14 | 15 | 16 | 17 | 18 |
| Period ↓ | ||||||||
| 2 | A | B | ||||||
| 3 | E | D | F | C |
Which of the element is a Metalloid?
