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प्रश्न
Match the following
| 1. | Galvanisation | Noble gas elements |
| 2. | Calcination | Coating with Zn |
| 3. | Redox reaction | Silver-tin amalgam |
| 4. | Dental filling | Alumino thermic process |
| 5. | Group 18 elements | Heating in the absence of air |
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उत्तर
| 1. | Galvanisation | Coating with Zn |
| 2. | Calcination | Heating in the absence of air |
| 3. | Redox reaction | Alumino thermic process |
| 4. | Dental filling | Silver-tin amalgam |
| 5. | Group 18 elements | Noble gas elements |
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संबंधित प्रश्न
The element which forms a basis oxide has the atomic number of:
(a) 18
(b) 17
(c) 14
(d) 19
Answer the following question.
Write the name, symbol, and electronic configuration of an element X whose atomic number is 11.
Example for liquid metal is ______.
State whether true or false. If false, correct the statement.
Metals can gain electrons.
______ group contains the member of the halogen family.
If the distance between two Cl atoms in a Cl2 molecule is 1.98Å, then the radius of the Cl atom is ______.
What is the atomic number of elements of period 3 and group 17 of the Periodic Table?
Consider the following elements 20Ca, 8Or 18Ar, 16S, 4Be, 2He
Which of the above elements would you expect to be in group 16 of the Periodic Table?
Arrange the following elements in the order of their decreasing metallic character
Na, Si, Cl, Mg, Al
Complete the following table:
| Symbol | Atomic No | Electronic Configuration | |
| 1. | He | 2 | ______ |
| 2. | Ne | ______ | 2,8 |
| 3. | Ar | ______ | 2, 8,8 |
| 4. | Na | 11 | ______ |
