Term 1 Week 5 2017

Homework

• Activity 12 A, p.194, Mass-Energy Equivalence
• Activity 12B, p.100-200, Nuclear Reactions
• Start Practice Assessment for Atomic & Nuclear Physics

Nuclear Fission

• The breaking up of a larger nucleus into smaller nuclei
• The decrease in mass per nucleon, matches the increase in binding energu per nucleon
• This binding energy per nucleon is a negative energy and represents energy that is lost (radiated away) during the reaction. 
• Binding energy per nucleon also represents the energy that would need to be added to liberate a nucleon from the nucleus

Nuclear Fission

Fission & Fusion

Nuclear Fusion

• The joining of smaller nuclei into a larger nucleus
• The decrease in mass per nucleon, matches the increase in binding energu per nucleon
• This binding energy per nucleon is a negative energy and represents energy that is lost (radiated away) during the reaction. 
• Binding energy per nucleon also represents the energy that would need to be added to liberate a nucleon from the nucleus

Nuclear Fusion

Fusion Energy

Binding Energy per Nucleon

Term 1 Week 4 2017

Homework

• Activity 12 A, p.194, Mass-Energy Equivalence
• Activity 12B, p.100-200, Nuclear Reactions

Nuclear Reaction E = mc²

Nuclear Chemistry Part 1

Nuclear Chemistry Part 2

Binding Energy per Nucleon

Binding Energy per Nucleon is a negative energy or a debt of energy. This is the amount of energy it would take to liberate a nucleon from the nucleus. This energy was originally radiated off when the nucleus formed.

The energy radiated off, the Binding energy, is lost energy and comes from mass that is lost by the nucleons. Mass per Nucleon shows what is left over once a bound nucleon has radiated away some of its mass.

Fission:The breaking up of a larger nucleus into smaller daughter nuclei. Anything above Iron will radiate off energy.

Fusion:
The joining of smaller nuclei into a larger nucleus. Anything below Iron will radiate off energy.

Fission & Fusion

Fission

Term 1 Week 3 2017

Atomic Line Spectra

Atomic Line Spectra and the Electron Shell Transitions they represent

Atomic Line Spectra and the Electron Shell Transitions they represent - put another way

Working with the Rydberg Equation

1/λ = R(1/S² – 1/L²)

λ: Wavelength (m)

R: Rydberg Constant

R = 1.097 x 10⁷ m^-1

S: Series Number

L: Line Number

L > S

Bohr Model of the Atom

mheducation Bohr Model Energy Changes Applet

E = -hCR/n2

h: Planck’s Constant

h = 6.626 x 10-34 m2kgs-1

c: Speed of Light in a vacuum

c = 3.00 x 108 ms-1

R: Rydberg Constant

R = 1.097 x 107 m-1

n: Electron Shell Number

Homework

Activity 11C Atomic Line Spectra

Activity 11D Bohr Model of the Hydrogen Atom

Term 1 Week 2 2017

Photoelectric Effect

Khan Academy Photoelectric Effect

Homework:

• Activity 11A, p. 176, Waves & Photons
• Activity 11B, p. 179-180, The Photoelectric Effect