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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
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is a non-metal.
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.
Match the column A with Column B.
|
Column A |
Column B |
|
(i) Sodium chloride (ii) Ammonium ion (iii) Carbon tetrachloride |
Covalent bond Ionic bond Covalent and coordinate bond |
Name the following:
The shell closest to the nucleus of an atom
Choose the correct option
Which of the following is the correct electronic configuration of potassium?
How do atoms attain noble gas configurations?
What do you understand by redox reactions?
Potassium (at No.19) and chlorine (at No.17) react to form a compound. Explain the formation of the compound on the basis of oxidizing agent.
Identify the following reaction as either oxidation or reduction:
Fe3+ + e- → Fe2+
How many atoms of each kind are present in the following molecule:
Chlorine
