Lesson 4.3.1-4.3.2 Atomic structure and chemical bonding, Ionic bonding

Lesson 4.3.1 | Atomic structure and chemical bonding
Lesson 4.3.2 | Ionic bonding
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ChemSecondary EducationAge 13

This lesson contains 38 slides, with interactive quiz and text slides.

Items in this lesson

Lesson 4.3.1 | Atomic structure and chemical bonding
Lesson 4.3.2 | Ionic bonding

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Today's Lesson Goals
  • recall the atomic structures of some elements 
  • describe the formation of ions through drawing diagrams
  • explain how an ionic bond is formed

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Enquiry question
Sodium is very reactive and unstable. Is it possible for it to become stable? Explain if you can.

Slide 3 - Open question

timer
5:00
Drawing a diagram

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Understanding key concepts

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Atomic structure

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highest energy level / outermost electron shell

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  • atomic number = number of protons
  • number of protons = number of electrons
  • electron charge = - 1
  • proton charge = +1
  • electron + proton charges = overall charge of atom
  • electrostatic forces = keep electrons in place
Remember!

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Stable
Unstable

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Unstable atoms = REACTIVE
Remember!

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Unstable atoms = NOT FULL OUTER SHELL
Remember!

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Enquiry question
All unstable atoms have incomplete electrons in their outer shells. 
What must these atoms do to become stable? How?

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unstable
stable

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unstable
stable

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unstable
unstable
formation of a compound (water)
unstable

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stable
stable
stable

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stable
stable
stable
chemical bond

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Enquiry question
How is a chemical bond formed? 

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unstable
stable
Losing electrons to become stable.
loses an 

electron

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unstable
stable
Gaining electrons to become stable.

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unstable atoms
stable ions
Ionic bonding : a type of chemical bonding between a metal and a non-metal

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Slide 33 - Link

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Collaborative Work

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COLLABORATIVE TEAMS
Team 1
Moniroth
Yali
Korng
Nary

Team 2
Nich
Kateka
Kimsuor
Team 3
Colawin
Rita
Vennessa
Team 4
Ponnareay
Phimean
Nalin
Team 5
Kimmeng
Keriya
Neath

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Quick Task: Instructions

  • Given an element,  draw a diagram to show the formation of a lithium ion or a fluoride ion. 
  • Post your work on the whiteboard.

timer
10:00

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timer
5:00

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