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प्रश्न
State the number of elements in Period 2 of the Periodic Table.
How many elements are there in Period 2.
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उत्तर
Period 2 is a short period that has 8 elements.
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संबंधित प्रश्न
Compare and contrast the arrangement of elements in Mendeleev’s periodic Table and the Modern Periodic Table.
Why do all the elements of the same group have similar properties?
What is the significance of atomic number in the modern classification of elements? Explain with the help of an example.
State how the valency of elements varies in a group of the periodic table?
In what respects do the properties of group 1 elements differ from those of group 17 elements? Explain with examples by taking one element from each group.
What are the periods in a periodic table? Give two characteristics of each.
Fill in the blank:
The horizontal rows in the periodic table are called _____________.
State the number of elements in Period 1 of the Periodic Table.
A part of modern periodic table is given below. On its basis, answer the following questions:
| Group No. → | 1 | 2 | 13 | 14 | 15 | 16 | 17 | 18 |
| Period ↓ | ||||||||
| 2 | A | B | ||||||
| 3 | E | D | F | C |
Write the molecular formula of the compound formed by the combination:
A and F
Match the atomic number with the following:
An element of group 2.
