Quantum Theory Review Key

Name: Hour: Date: QUANTUM THEORY REVIEW Honors Chemistry 1. Draw two waves with different wavelengths and frequencies. State which has a higher frequency, longer wavelength, and greater energy. Label the amplitude of the waves. [Image of two waves, one with a longer wavelength and lower amplitude, and the other with a shorter wavelength and higher amplitude] Long wavelength High Frequency, high energy 2. Analyze the electromagnetic spectrum and LABEL the wavelength and frequency trends. | Radio Waves | Microwaves | Infrared | Visible | Ultraviolet | X-Ray | Gamma | |---|---|---|---|---|---|---| | long λ | 6. The blue color in some fireworks occurs when copper (I) chloride is heated and emits blue light of wavelength 4.50 x 10² nm. How much energy does one photon of this light carry? E = hc/λ = (6.626 x 10⁻³⁴ J s)(3.0 x 10⁸ m/s) / 4.5 x 10⁻⁷ m E = 4.42 x 10⁻¹⁹ J 7. Complete the following table: | Principle Energy Level (n) | Sublevels | Number of Orbitals | Total number of electrons | |---|---|---|---| | 1 | 1s² | 1 | 2 | | 2 | 2s², 2p⁶ | 1+3=4 | 8 | | 3 | 3s², 3p⁶, 3d¹⁰ | 1+3+5=9 | 18 | | 4 | 4s², 4p⁶, 4d¹⁰, 4f¹⁴ | 1+3+5+7=16 | 32 | 8. Draw orbital diagrams for: a. K: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ b. Mn: ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ c. N: ↑↓ ↑↓ ↑↓ ↑ d. Cl: ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ 9. Write electron configurations for: a. Ca: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² b. Cr: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d⁵ c. Mg: 1s² 2s² 2p⁶ d. Kr: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 10. Write noble gas shorthand notation for: a. Se: [Ar]4s²3d¹⁰4p⁴ b. Rb: [Kr]5s¹ c. Au: [Xe]6s¹4f¹⁴5d¹⁰ d. Ba: [Xe]6s² 11. Draw electron dot structures for: a. Oxygen: O: b. Francium: Fr. c. Astatine: At: d. Germanium: Ge: