What are Ionic Bonds? | Properties of Matter | Chemistry | FuseSchool — Transcript

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1. 0:01we have previously learned about the
2. 0:02formation of ions now we will learn
3. 0:06about ionic bonds
4. 0:10ions as you already know are formed from
5. 0:12the loss or gain of electrons
6. 0:15electrons however do not suddenly appear
7. 0:19or disappear
8. 0:20they are in fact transferred from one
9. 0:23atom to another
10. 0:25let's look at sodium chloride as an
11. 0:27example
12. 0:29sodium loses one electron to form a
13. 0:32sodium ion
14. 0:33the electron is not lost but transferred
15. 0:37to chlorine to form a chloride ion
16. 0:41so we have a sodium ion and a chloride
17. 0:44ion
18. 0:46they are oppositely charged ions and
19. 0:48will be electrostatically attracted to
20. 0:51one another much like how opposite poles
21. 0:53of a magnet are attracted to one another
22. 0:57this electrostatic attraction is an
23. 0:59ionic bond
24. 1:01sodium chloride is an ionic compound
25. 1:04because it is held intact by ionic bonds
26. 1:09the same thing happens with magnesium
27. 1:11and oxygen
28. 1:13why don't you grab a piece of paper and
29. 1:15a pencil and draw the resulting ionic
30. 1:17compound magnesium oxide please pause
31. 1:20the lesson and resume when you are done
32. 1:25magnesium transfers its two valence
33. 1:28electrons to oxygen forming the
34. 1:31magnesium ion and an oxide ion
35. 1:35the resulting ions are electrostatically
36. 1:37attracted to one another forming an
37. 1:40ionic bond
38. 1:42did you get this right did you remember
39. 1:45to include the charges on the ion
40. 1:48now let's look at calcium and chlorine
41. 1:52calcium loses two electrons to form a
42. 1:55calcium ion
43. 1:57one of these electrons is transferred to
44. 2:00a chlorine atom and another is
45. 2:02transferred to another chlorine atom
46. 2:05forming two chloride ions
47. 2:10the calcium ion is electrostatically
48. 2:12attracted
49. 2:13to the two chloride ions because the
50. 2:16opposite charges must fully balance each
51. 2:18other out
52. 2:19in all three examples the resulting
53. 2:22ionic compounds have an overall neutral
54. 2:24charge because all charges are fully
55. 2:27balanced out
56. 2:28in summary an ionic bond is defined as
57. 2:31the electrostatic attraction between
58. 2:34oppositely charged ions when an ionic
59. 2:37compound is formed the charges must be
60. 2:39balanced so that the resulting ionic
61. 2:42compound has an overall neutral charge
62. 2:54you