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प्रश्न
Explain Octet rule with an example.
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उत्तर
The tendency of atoms to have eight electrons in the valence shell is known as the ‘Octet rule’ or the ‘Rule of eight’.
Example: Sodium with atomic number 11 will readily loose one electron to attain Neon’s stable electronic configuration.
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संबंधित प्रश्न
Mention the basic tendency of an atom which makes it to combine with other atoms.
Element X is a metal with a valency 2. Element Y is a non metal with a valency 3.
(a) Write equations to show how X and Y form ions.
(b) If Y is a diatomic gas, write the equation for the direct combination of X and Y to form a compound.
An element with the atomic number 19 will most likely combine chemically with the element whose atomic number is
Elements X, Y, and Z have atomic numbers 6, 9 and 12 respectively. Which one :
State type of bond between Y and Z and give its molecular formula.
Name the following:
Two atoms having the same number of protons and electrons but different number of neutrons.
Potassium (at No.19) and chlorine (at No.17) react to form a compound. Explain the formation of the compound on the basis of reduction.
Sodium having atomic number 11, is ready to ______ electron/ electrons to attain the nearest noble gas electronic configuration.
Match the following:
| 1. | Atomic bond | a. | Oxygen and hydrogen |
| 2. | Atoms with different electronegativities | b. | acceptor bond |
| 3. | An atom that accepts electron pair | c. | covalent bond |
| 4. | Rusting of iron | d. | donor atom |
| 5. | An atom that provides electron pair | e. | oxidation |
| f. | ionic bond |
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is a metal.
Elements A, B and C have atomic number 17, 19 and 10 respectively.
Write down the formula of the compound formed by two of the above elements.
