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Year 9 Science Atoms & Ions

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Lakshmi Sharma

Explains atoms, shell configurations and formation of ions

Education
1 of 17
Year 9 Science Atoms & Ions Dr Sharma Lesson Objective:To gain knowledge & understanding of the relationship between atoms & ions
Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions2 What’s in an Atom ???
Atoms Protons Neutrons = Electrons Where are they in an atom ? SUBATOMIC PARTICLES Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions3
Atoms Protons nucleus Neutrons nucleus Electrons Orbit around the nucleus in electron clouds Cannot determine exact location Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions4
Atoms Protons Neutrons Electrons What’s their charge ? Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions5
Atoms + Protons Neutral Neutrons - Electrons Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions6
Elements Calculate the number of protons, electrons & neutrons for Na Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions7
Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions8
Isotopes These are isotopes of Hydrogen & Helium - why ??? Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions9
Isotopes Same number of protons Different numbers neutrons Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions10
Electrons – Shell Diagram Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions11
Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions12 Shell Diagrams Molecular OrbitalTheory
Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions13 Can you draw shell diagram for B & P ?
Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions14
Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions15 Atoms & Ions Cation is formed when an atom loses an electron Na+ Anion is formed when an atom gains an electron Cl- Looking at charge of the atom
Let’s Build an Atom, form a cation/anion Build an Atom Open your devices & please go to this webpage http://phet.colorado.edu/en/simulation/build-an-atom Look at the charge when you add/take away more protons or electrons. What happens???? Look at the periodic table try & make your atoms Calculate Neutrons, Protons & Electons Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions16
Hope you Enjoyed the Lesson

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Year 9 Science Atoms & Ions

  • 1. Year 9 Science Atoms & Ions Dr Sharma Lesson Objective:To gain knowledge & understanding of the relationship between atoms & ions
  • 2. Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions2 What’s in an Atom ???
  • 3. Atoms Protons Neutrons = Electrons Where are they in an atom ? SUBATOMIC PARTICLES Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions3
  • 4. Atoms Protons nucleus Neutrons nucleus Electrons Orbit around the nucleus in electron clouds Cannot determine exact location Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions4
  • 5. Atoms Protons Neutrons Electrons What’s their charge ? Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions5
  • 6. Atoms + Protons Neutral Neutrons - Electrons Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions6
  • 7. Elements Calculate the number of protons, electrons & neutrons for Na Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions7
  • 8. Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions8
  • 9. Isotopes These are isotopes of Hydrogen & Helium - why ??? Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions9
  • 10. Isotopes Same number of protons Different numbers neutrons Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions10
  • 11. Electrons – Shell Diagram Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions11
  • 12. Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions12 Shell Diagrams Molecular OrbitalTheory
  • 13. Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions13 Can you draw shell diagram for B & P ?
  • 14. Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions14
  • 15. Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions15 Atoms & Ions Cation is formed when an atom loses an electron Na+ Anion is formed when an atom gains an electron Cl- Looking at charge of the atom
  • 16. Let’s Build an Atom, form a cation/anion Build an Atom Open your devices & please go to this webpage http://phet.colorado.edu/en/simulation/build-an-atom Look at the charge when you add/take away more protons or electrons. What happens???? Look at the periodic table try & make your atoms Calculate Neutrons, Protons & Electons Enjoy ! Dr Lakshmi Sharma Year 9 Science Atoms & Ions16