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Illustrations on Lewis Dot Structure and Ionic Bond Formation (in Hindi)
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In this lesson, we will be discussing the concept of LDS (Lewis Dot Structure) and the term - Electrovalency with example.

Tushar Khanna
Chemistry Enthusiast | NEET 2018 Qualified | MBBS student | Gold Medalist - Science Olympiad, English Olympiad | Qualified CET | Rank - 24

Unacademy user
sir in 71: The 42nd Amendment also amended the Preamble and changed the description of India from "sovereign democratic republic" to a "sovereign, socialist secular democratic republic", and also changed the words "unity of the nation" to "unity and integrity of the nation"
electronic configuration of k is 2 8 9 but you have written 2 8 1.
Tushar Khanna
10 months ago
yes. right. sorry. i missed one 8. it should be 2 8 8 1. thanks for pointing out. 👍
  1. LESSON Illustrations . and Ionic Bond


  2. MgO 2


  3. MgO 2,8,2 2,8,6 3


  4. MgO Mg 2,8,6 2,8,2


  5. MgO Mg 2,8,8 2,8 5


  6. MgO 2 +2 Mg 2,8 2,8,8


  7. MgO 2 Mg2 2,8 2,8,8 7


  8. K2S Ko 8


  9. K2S Ko 2,8,! 2,8,6 9


  10. K2S Ko 2,8,1 2,8,6 10


  11. K2S 2 2,8 2,8,8 12


  12. Ionic Bond O Is always formed between elements of different nature - one being electro positive while other electro negative. 14


  13. ELECTRO VALENCY o No. of electrons gained or lost to form ionic bond is called electro valency 17


  14. O F O 1s2 2s2 2p5 O 1 electron gained to complete octet OEV1 18


  15. Thank you Ou.. Any Questions? 19