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प्रश्न
How do atoms attain noble gas configuration?
उत्तर
Atoms lose, gain or share electrons to attain noble gas configuration.
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संबंधित प्रश्न
Give electron dot diagram of the following:
nitrogen
Name an element which does not contain neutron.
Explain fractional atomic mass. What is the fractional mass of chlorine?
Give a reason
Physical properties of isotopes are different.
Potassium (at No.19) and chlorine (at No.17) react to form a compound. Explain the formation of the compound on the basis of reducing agent.
In the formation of magnesium chloride (by direct combination between magnesium and chlorine), name the substance that is oxidized and the substance that is reduced.
Sodium having atomic number 11, is ready to ______ electron/ electrons to attain the nearest noble gas electronic configuration.
Complete the table give below.
| Element |
Atomic number |
Electron distribution | Valence electrons | Lewis dot structure |
| Lithium | 3 | 1s22s1 | ||
| Boron | 5 | 1s22s22p1 | ||
| Oxygen | 8 | 1s22s22p4 |
Match the following:
| 1. | Monoatomic gaseous atom | a. | Electrovalent bond |
| 2. | Octet rule | b. | Benzene |
| 3. | Ionic bond | c. | Water |
| 4. | Non-polar solvent | d. | Electronic theory of valence |
| 5. | Polar solvent | e. | Noble gases |
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is chemically inert.
