#  Flame Test Activity October 19, 2010 andrewpaladie.wordpress.com.

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

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

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

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

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

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

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

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

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

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 frequency High Frequency Low energy High energy

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

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

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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

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

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

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!

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