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SITI FATIMAH BAHARUDIN D20021011150. SITI FADHILAH AYUB D20021011148. PROFILE. COVALENT. BOND. COVALENT BOND. WHAT IS COVALENT BOND. ELECTRON ARRANGEMENT FOR TRIPLE BOND. ELECTRON ARRANGEMENT FOR SINGLE BOND. CONCLUSION. ELECTRON ARRANGEMENT FOR DOUBLE BOND. EXERCISE.

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PROFILE

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  1. SITI FATIMAH BAHARUDIN D20021011150 SITI FADHILAH AYUB D20021011148 PROFILE

  2. COVALENT BOND

  3. COVALENT BOND WHAT IS COVALENT BOND ELECTRON ARRANGEMENT FOR TRIPLE BOND ELECTRON ARRANGEMENT FOR SINGLE BOND CONCLUSION ELECTRON ARRANGEMENT FOR DOUBLE BOND EXERCISE

  4. WHAT IS COVALENT BOND? • A chemical bond formed by sharing a pair of electrons is called a covalent bond • Covalent bond usually formed between non-metals. • In many molecules atoms attain complete octets by sharing one or more than one pair of electrons between them.

  5. TYPES OF COVALENT BOND There are 3 types of covalent bond: a) Single bond b) Double bond c) Triple bond

  6. SINGLE BOND SINGLE BOND Example : molecule of water formed when one pair of electron is shared between two atoms. These two valence electrons forming the bond are shared by both atoms, resulting in a SINGLE COVALENT BOND

  7. Covalent bonding electron SINGLE BOND Another example : CH4 NH3

  8. DOUBLE BOND DOUBLE DOND Example :molecule of oxygen formed when three pairs of electrons are shared between two atoms. These two oxygen atoms share two pairs of valence electrons (four valence electrons total) between them, forming a DOUBLE COVALENT BOND

  9. Another example : CO2 Covalent bonding electron

  10. TRIPLE BOND TRIPLE BOND Example: Molecule of Nitrogen Formed when two pairs of electrons are shared between two atoms. The two nitrogen atoms in a molecule of nitrogen share three pairs of valence electrons (six valence electrons total) to form a TRIPLE COVALENT BOND.

  11. H H H H ELECTRON ARRANGEMENT FOR SINGLE BOND Example:1H2 + The shared a pair of electrons provides each hydrogen atom with two electrons in its valence shell (the 1s) orbital.

  12. Cl Cl Cl Cl Example: Cl2 + Each chlorine atom shared a pair of electron and achieves the electron configuration of the noble gas argon

  13. F F F F Example: F2 + Each fluorine atom shared a pair of electron and achieves the electron configuration of the noble gas argon

  14. Example: CF4 Four chlorine atom shared four pair of electrons with carbon atom to achieves the electron configuration of the noble gas argon

  15. O O O O ELECTRON ARRANGEMENT FOR DOUBLE BOND Example: 6O2 + Each oxygen atom shared two pairs of electrons and achieves the electron configuration of the noble gas argon

  16. C O C O O Example: CO2 + 2 Two oxygen atoms shared two pair of electrons with carbon atom to achieves the electron configuration of the noble gas argon

  17. N N N N ELECTRON ARRANGEMENT FOR TRIPLE BOND Example:N2 + Because each nitrogen contains 5 valence electrons, they need to share 3 pairs to each achieve a valence octet

  18. CONCLUSION Meaning of covalent bond Covalent bond formed by sharing electrons between non-metals Types of bonding Single-sharing a pair of electron Double-sharing 2 pairs of electrons Triple-sharing 3 pairs of electrons COVALENT BOND Why the covalent bond happen? To make sure each atom will achieve an octet in electron arrangement

  19. ARE YOU ABLE TO : • state the meaning of covalent bond • explain formation of covalent bond ; • Single bond • Double bond • Triple bond • drawing electron arrangement of covalent bond

  20. EXERCISE 1. Draw a Lewis structure for carbon, C. 2. Draw a Lewis structure for chlorine, Cl. 3. Draw a Lewis structure for CCl4 4. Draw a Lewis structure for water, H2O.

  21. Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. The electrons involved in the formation of a covalent bond are A. transferred from one atom to another B.found only in the s-orbitals C. valence electrons D. in filled orbitals

  22. 2. How many electrons contain in complete octets? A. two C. six B. four D. eight

  23. 3. In a double bond, two atoms share a total of _____ electrons. a. two c. four b. three d. six

  24. 4. Which of the following compounds contains a double bond? a. O2 c. N2 b. Cl2 d. C2H6

  25. SORRY ! TRY AGAIN..

  26. SORRY ! TRY AGAIN..

  27. SORRY ! TRY AGAIN..

  28. SORRY ! TRY AGAIN..

  29. CONGRATULATION

  30. CONGRATULATION

  31. CONGRATULATION

  32. CONGRATULATION

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