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Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework Update your Table of Contents Homework : None T of C Unit 2: Atomic Theory and Periodic Table 14 4 Square Graphic Organizer Electronegativity 15 4 Square: Video Clips Nuclear Fission and Fusion 16 Practice Q’s Radioactive Decay 17 Radiation Investigation Notes: EM Radiation

Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework Update your Table

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Page 1: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Catalyst Catalyst

Catalyst QuestionsCatalyst Questions Alpha decay is blocked by _____,

beta is blocked by ____, and gamma is blocked by ____.

Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____.

To Do & Homework To Do & Homework Update your Table of Contents

Homework: None

Update your Table of Contents

Homework: None

T of

CT

of C

Unit 2: Atomic Theory and Periodic Table14 4 Square Graphic Organizer Electronegativity 15 4 Square: Video Clips Nuclear Fission and Fusion16 Practice Q’s Radioactive Decay17 Radiation Investigation Notes: EM Radiation

Page 2: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table
Page 3: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

1. Black hole 2. Light bulb 3. X-ray of hand 4. Infrared picture of a cat 5. Microwave oven 6. AM/FM radio

Sequence the cards using logic, and write down your rationale for the chosen order on 17L.

Be prepared to share out.

How are the images related?

Page 4: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

What do radios, microwaves, and X rays have in common?

Name the 7 types of EM radiation Do gamma rays have short or long wavelengths The Fermi telescope allows us to see what? Define electromagnetic spectrum.

Page 5: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Electromagnetic Waves

Page 6: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

What do radios, microwaves, and X rays have in common?

Name the 7 types of EM radiation Do gamma rays have short or long wavelengths The Fermi telescope allows us to see what? Define electromagnetic spectrum.

Page 7: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Using the given EM Wave for your group, you will individually answer the questions from the investigation table

Challenge: find an example of something that is relatively the same size as one wavelength of that EM Wave.

Is one wavelength the size of a cell? Of a truck? Building?

Page 8: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Putting together the EM Spectrum Each person from each group will each have a different

key piece of information on an index card or sticky note and place on the big roll of butcher paper for your class period.

We have constructed our own EM Spectrum using what YOU found. Now let me explain everything.

Page 9: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Electromagnetic Spectrum (17R)• Is the name for the range of EM waves when

placed in order of increasing frequency. • Spectrum ranges from radio to gamma rays

Page 10: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table
Page 11: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Characteristics of EM Waves• ALL types have the same speed; the speed of light• But each EM wave has a unique wavelength and

unique frequency. • EM waves transfer energy in the form of EM

radiation.

Page 12: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Frequency (): the number of wave peaks per second, measured in hertz (Hz)

Page 13: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Wavelength (): the distance between two peaks of a wave, measured in nanometers (nm).

Page 14: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Reflection on back of catalyst

• Write 3 takeaways from today’s investigation. • What do you think makes a microwave

different from a gamma ray?

Page 15: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Catalyst Catalyst

Catalyst QuestionsCatalyst Questions Contrast wavelength and

frequency. Use a picture to illustrate these two concepts.

Contrast wavelength and

frequency. Use a picture to illustrate these two concepts.

To Do & Homework To Do & Homework Update your Table of Contents

Homework: None

Update your Table of Contents

Homework: None

T of

CT

of C

Unit 2: Atomic Theory and Periodic Table14 4 Square Graphic Organizer Electronegativity 15 4 Square: Video Clips Nuclear Fission and Fusion16 Practice Q’s Radioactive Decay17 Radiation Investigation Notes: EM Radiation18 Practice Notes: Wave Calcuations

Page 16: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

The following equation relates frequency and wavelength to the speed of light:

c =

•c is the speed of light (3 x 108 m/s)• is the wavelength (meters)• is frequency (s-1 or Hz)

Page 17: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Example 1: Find the wavelength of a light with a frequency of 2.5 x 1014 Hz.

Page 18: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Example 2: Find the wavelength of a light with a frequency of 5.0 x 1014 Hz.

Page 19: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Honors Example 3: Find the frequency of a light with a wavelength 300 nm.

Page 20: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Example 3: Find the frequency of a light with a wavelength 3 x 10 -7 meters.

Page 21: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Honors Example 4: Find the frequency of a light with a wavelength 200 nm.

Page 22: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Example 4: Find the frequency of a light with a wavelength 2 x 10-7 meters

Page 23: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

• Plank stated that energy is emitted (released) in discrete units (“Packets”) called quanta.

• This stream of light in “packets” is also known as the photon.

Page 24: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

The energy of a photon varies with the frequency of the radiation according to the equation:

E = h

E = Energy in joules = Frequency (s-1 or Hz)h = Planck’s constant (6.6 x 10-34 J/Hz)

Page 25: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Example 5: What is the energy of a light with a frequency of 3.5 x 1014 Hz?

Page 26: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Example 6: What is the energy of a light with a frequency of 7.2 x 1014 Hz?

Example 7: What is the energy of a light with a frequency of 2.9 x 1014 Hz?

Page 27: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Honors Example 8: Find the energy of a photon of light with a wavelength of 450 nm.

Page 28: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Example 8: Find the energy of a photon of light with a wavelength of 4.5x10-7 m.

Page 29: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Catalyst Catalyst

Catalyst QuestionsCatalyst Questions Find the frequency of a light with

a wavelength 2 x 10-7 meters

Find the frequency of a light with

a wavelength 2 x 10-7 meters

To Do & Homework To Do & Homework Update your Table of Contents

Homework: None

Update your Table of Contents

Homework: None

T of

CT

of C

Unit 2: Atomic Theory and Periodic Table14 4 Square Graphic Organizer Electronegativity 15 4 Square: Video Clips Nuclear Fission and Fusion16 Practice Q’s Radioactive Decay17 Radiation Investigation Notes: EM Radiation18 Practice/EM Wave Calculations Notes: Wave Calcuations19 Simulation EM Radiation Webquest

Page 30: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Important Discovering about the Atom

Page 31: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

• Heisenberg found that it is impossible to know both the exact position and momentum (velocity) of an electron at the same time.

• Werner Heisenberg …..won the the Nobel Prize for this.

Page 32: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

• Erwin Schrodinger calculated the “probability” of finding an electron in an atom. This disproved the Bohr Model of the atom.

• Electrons DON’T orbit the nucleus in orbits instead they are found in regions called electron clouds or orbitals.

Page 33: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

• Atoms absorb and release energy in the form of photons or light energy.

• Neils Bohr found that an electron has qualities of both a particle and a wave. When measuring an electron’s position, it is found as a particle in space. But when you measure its velocity or momentum, it is treated as a wave.

Page 34: Catalyst Catalyst Questions Alpha decay is blocked by _____, beta is blocked by ____, and gamma is blocked by ____. To Do & Homework  Update your Table

Agenda Off task behavior will result in a detention.

All must be finished by the end of today.

Rounding however you want is okay.

6.67 = 6.7 = 7 (all are okay)

My answers are in sicentific notation, yours don’t have to be.