Learning objective
E.1.1—Rutherford experiment
• Geiger-Marsden-Rutherford experiment and the discovery of the nucleus.
- 0%
- Mastery
- 0
- Attempts
- 0
- Mistakes
Start with the concept explanation, then practise to create mastery evidence.
Course review
E.1 Structure of the atom
Review each learning objective in this topic, then open its concept explanation or question set.
11 Learning objectives0 Mastered0% Topic mastery0 Attempts
New
Learning objective
E.1.2—Nuclear notation
• Use nuclear notation: A = nucleon number, Z = proton number, X = element symbol.
- 0%
- Mastery
- 0
- Attempts
- 0
- Mistakes
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
E.1.3—Atomic energy levels
• Emission and absorption spectra provide evidence for discrete atomic energy levels.
- 0%
- Mastery
- 0
- Attempts
- 0
- Mistakes
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
E.1.4—Atomic transitions
• Photons are emitted/absorbed during transitions between atomic energy levels.
- 0%
- Mastery
- 0
- Attempts
- 0
- Mistakes
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
E.1.5—Photon energy
• Photon energy in atomic transition: E=hf.
- 0%
- Mastery
- 0
- Attempts
- 0
- Mistakes
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
E.1.6—Spectra and composition
• Use emission and absorption spectra to infer chemical composition.
- 0%
- Mastery
- 0
- Attempts
- 0
- Mistakes
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
E.1.7 (HL)—Nuclear radius
• Nuclear radius scales with nucleon number: R=R0 A^(1/3); implies near-constant density. • Relationship implies approximately constant nuclear density.
- 0%
- Mastery
- 0
- Attempts
- 0
- Mistakes
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
E.1.8 (HL)—High-energy scattering deviations
• Deviations from Rutherford scattering at high energies.
- 0%
- Mastery
- 0
- Attempts
- 0
- Mistakes
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
E.1.9 (HL)—Closest approach
• Use energy conservation for distance of closest approach in head-on scattering.
- 0%
- Mastery
- 0
- Attempts
- 0
- Mistakes
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
E.1.10 (HL)—Bohr hydrogen levels
• Bohr hydrogen energy levels: E=-13.6/n^2 eV.
- 0%
- Mastery
- 0
- Attempts
- 0
- Mistakes
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
E.1.11 (HL)—Bohr angular momentum
• Bohr quantization: angular momentum mvr = nh/(2π).
- 0%
- Mastery
- 0
- Attempts
- 0
- Mistakes
Start with the concept explanation, then practise to create mastery evidence.