Flame Test Activity

1. Flame Test Activity October 19, 2010 andrewpaladie.wordpress.com

2. Figuring out what things are made of • Scientists want to know what elements are in different samples.

3. Figuring out what things are made of • Scientists want to know what elements are in different samples. • Which sample is sodium chloride?

4. Figuring out what things are made of • Scientists want to know what elements are in different samples. • Which sample is sodium chloride? Sodium chloride Magnesium chloride

5. Figuring out what things are made of • Scientists want to know what elements are in different samples. • Which sample is sodium chloride? • What is the Sun made of? Sodium chloride Magnesium chloride http://en.wikipedia.org/wiki/Sun

6. Properties of Light • Light is a form of energy. Electromagnetic Radiation Spectrum quarknet.fnal.gov

7. Properties of Light • Light is a form of energy. • Visible light behaves both like a wave and a particle.

8. Properties of Light • Light is a form of energy. • Visible light behaves both like a wave and a particle. • Let’s meet Roy G. Biv. centuriogroup.wordpress.com

9. Properties of Light • Light is a form of energy. • Visible light behaves both like a wave and a particle. • Let’s meet Roy G. Biv. Distance covered

10. Properties of Light • Light is a form of energy. • Visible light behaves both like a wave and a particle. • Let’s meet Roy G. Biv. Low energy Low frequency High energy High Frequency

11. Excitation of Electrons • We can think of electron configurations in terms of energy.

12. Excitation of Electrons • We can think of electron configurations in terms of energy. Let’s make the energy diagram for sodium (Na)

13. Excitation of Electrons • We can think of electron configurations in terms of energy. • Start by putting electrons in the bottom orbital and move up one orbital at a time. Let’s make the energy diagram for sodium (Na)

14. Excitation of Electrons • We can think of electron configurations in terms of energy. • Start by putting electrons in the bottom orbital and move up one orbital at a time. Let’s make the energy diagram for sodium (Na)

15. Excitation of Electrons • We can think of electron configurations in terms of energy. • Start by putting electrons in the bottom orbital and move up one orbital at a time. Let’s make the energy diagram for sodium (Na)

16. Excitation of Electrons • We can think of electron configurations in terms of energy. • Start by putting electrons in the bottom orbital and move up one orbital at a time. Let’s make the energy diagram for sodium (Na)

17. Excitation of Electrons • We can think of electron configurations in terms of energy. • Start by putting electrons in the bottom orbital and move up one orbital at a time Let’s make the energy diagram for sodium (Na)

18. Excitation of Electrons • We can think of electron configurations in terms of energy. • Start by putting electrons in the bottom orbital and move up one orbital at a time • When putting electrons into orbitals of the same energy, put electrons into each orbital before pairing the electron. Let’s make the energy diagram for sodium (Na)

19. Excitation of Electrons • We can think of electron configurations in terms of energy. • Start by putting electrons in the bottom orbital and move up one orbital at a time • When putting electrons into orbitals of the same energy, put electrons into each orbital before pairing the electron. Let’s make the energy diagram for sodium (Na)

20. Excitation of Electrons • We can think of electron configurations in terms of energy. • Start by putting electrons in the bottom orbital and move up one orbital at a time • When putting electrons into orbitals of the same energy, put electrons into each orbital before pairing the electron. Let’s make the energy diagram for sodium (Na)

21. Excitation of Electrons • We can think of electron configurations in terms of energy. • Start by putting electrons in the bottom orbital and move up one orbital at a time • When putting electrons into orbitals of the same energy, put electrons into each orbital before pairing the electron. Let’s make the energy diagram for sodium (Na)

22. Excitation of Electrons • We can think of electron configurations in terms of energy. • Start by putting electrons in the bottom orbital and move up one orbital at a time • When putting electrons into orbitals of the same energy, put electrons into each orbital before pairing the electron. Let’s make the energy diagram for sodium (Na)

23. Excitation of Electrons • We can think of electron configurations in terms of energy. GROUND STATE Let’s make the energy diagram for sodium (Na)

24. Excitation of Electrons • What happens if we add energy to the atom in the form of heat? Ground State Excited State

25. Excitation of Electrons • What happens if we add energy to the atom in the form of heat?

26. Excitation of Electrons • What happens if we add energy to the atom in the form of heat? Some atoms release this energy in the form of visible light!

27. Flame Test Demo • Each element has a specific way in which their electrons are excited upon heating. • This means each element gives off different colors when the electrons are returning to the ground state after being heated. • Now we have a way to identify different elements! Sample