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Covalent bonds: Sharing is caring!

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Presentation on theme: "Covalent bonds: Sharing is caring!"— Presentation transcript:

1 Covalent bonds: Sharing is caring!
The love story of non-metals

2 LET’S FIRST REVIEW IONIC BONDING

3 F K In an IONIC bond, electrons are lost or gained,
resulting in the formation of IONS in ionic compounds. F K

4 K F

5 K F

6 K F

7 K F

8 K F

9 + _ K F

10 K F _ + The ionic bond is the attraction between the positive K+ ion
and the negative F- ion

11 So what are covalent bonds?

12 In covalent bonding, atoms still want to achieve a noble gas configuration (the octet rule).

13 But rather than losing or gaining electrons,
In covalent bonding, atoms still want to achieve a noble gas configuration (the octet rule). But rather than losing or gaining electrons, atoms now share an electron pair.

14 The shared electron pair is called a bonding pair.
In covalent bonding, atoms still want to achieve a noble gas configuration (the octet rule). But rather than losing or gaining Electrons, atoms now share an electron pair. The shared electron pair is called a bonding pair.

15 Bonding pairs are abbreviated by a dash
In covalent bonding, atoms still want to achieve a noble gas configuration (the octet rule). But rather than losing or gaining Electrons, atoms now share an electron pair. The shared electron pair is called a bonding pair. Bonding pairs are abbreviated by a dash

16 between two non-metals, unlike ionic bonds that occur between
In covalent bonding, atoms still want to achieve a noble gas configuration (the octet rule). But rather than losing or gaining Electrons, atoms now share an electron pair. The shared electron pair is called a bonding pair. Bonding pairs are abbreviated by a dash Covalent bonds occur between two non-metals, unlike ionic bonds that occur between a metal and a non-metal.

17 This is because non-metals are NOT
In covalent bonding, atoms still want to achieve a noble gas configuration (the octet rule). But rather than losing or gaining Electrons, atoms now share an electron pair. The shared electron pair is called a bonding pair. Bonding pairs are abbreviated by a dash Covalent bonds occur between two non-metals, unlike ionic bonds that occur between a metal and a non-metal. This is because non-metals are NOT willing to give up their electrons like metals are.

18 Chlorine forms a covalent bond with itself Cl2

19 How will two chlorine atoms react? Cl Cl

20 Cl Cl Each chlorine atom wants to
gain one electron to achieve an octet

21 Cl Cl do to achieve an octet? What’s the solution – what can they
Neither atom will give up an electron – chlorine is highly electronegative. What’s the solution – what can they do to achieve an octet?

22 Cl Cl

23 Cl Cl

24 Cl Cl

25 Cl Cl

26 Cl Cl octet

27 Cl Cl octet

28 Cl Cl The octet is achieved by each atom sharing the
electron pair in the middle

29 Cl Cl The octet is achieved by each atom sharing the
electron pair in the middle

30 Cl Cl This is the bonding pair

31 Cl Cl It is a single bonding pair

32 Cl Cl It is called a SINGLE BOND

33 Single bonds are abbreviated
Cl Cl Single bonds are abbreviated with a dash

34 This is the chlorine molecule,
Cl Cl This is the chlorine molecule, Cl2

35 Let’s Practice! Oxygen and Oxygen

36 Let’s Practice! Chlorine and Oxygen

37 Let’s Practice! Carbon and Oxygen


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