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प्रश्न
Explain why all the elements of a group have similar chemical properties.
State the reason for the following observation:
All the elements in a group have similar chemical properties.
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उत्तर
All the elements of a group have similar chemical properties because they have the same number of electrons in their outer most shell.
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संबंधित प्रश्न
How were the positions of cobalt and nickel resolved in the modern periodic table?
Name the scientist who prepared modern periodic table.
On the basis of electronic configuration, how will you identify the first element of a period?
Name two elements in each case:
Transition element
Write a short note.
Structure of the modern periodic table.
Find the correlation:
Group 1 and 2 : s block : : group 13 and 18 : ______
Element ‘X’ forms a chloride with the formula XCl2, which is solid with a high melting point. X would most likely be in the same group of the periodic table as: ______
Arrange the following elements in the increasing order of their metallic character
| Mg, | Ca, | K, | Ge, | Ga |
Spot the error:
There are 5 periods and 17 groups in the modern 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
