Sub-topic 1
2024 · National Quarterfinal
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Photon energy of an electron transition in the hydrogen atom
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Sub-topic 2
2026 · National Semifinal
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Vibrational ground state energy of a diatomic molecule (quantum harmonic oscillator)
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Sub-topic 3
2025 · National Semifinal
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Ground state energy of a particle confined in a one-dimensional infinite potential well
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Sub-topic 4
2026 · National One-Eighth
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Photon energy from a hydrogen atom energy-level transition
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Sub-topic 5
2026 · National One-Eighth
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Orbital angular momentum of an electron from the quantum number l
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Sub-topic 6
2026 · National One-Eighth
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Emitted photon wavelength from a hydrogen energy-level transition
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Sub-topic 7
2026 · National Preliminary
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Transition frequency between hydrogen atom energy levels using the rydberg formula
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Sub-topic 8
2026 · National Preliminary
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Transition frequency between hydrogen atom energy levels using the rydberg formula
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Sub-topic 9
2024 · National One-Eighth
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Photon energy from a hydrogen atom energy-level transition
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Sub-topic 10
2023 · National Final
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The zeeman effect: splitting of spectral lines in a magnetic field
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Sub-topic 11
2013 · National Preliminary
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Ionization energy trend for electrons in higher energy levels (true/false)
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Sub-topic 12
2013 · National Preliminary
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Spectral region of the hydrogen lyman series
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Sub-topic 13
2013 · National Preliminary
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Spectral region of the hydrogen paschen series
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Sub-topic 14
2013 · National Preliminary
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Spectral region of the hydrogen balmer series
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Sub-topic 15
2017 · National Semifinal
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Angular momentum of an electron in the bohr model's n=2 hydrogen orbit
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Sub-topic 16
2018 · National Preliminary
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Photon energy absorbed for a quantum transition between two given energy levels
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Sub-topic 17
2021 · National Quarterfinal
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True or false: the hydrogen atom's ground state energy is negative
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Sub-topic 18
2021 · National Quarterfinal
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True or false: the first excited state energy is twice the ground state energy
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Sub-topic 19
2021 · National Quarterfinal
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True or false: the zero energy level corresponds to a free electron
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Sub-topic 20
2023 · National Quarterfinal
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Photon energy from an atomic transition between two given energy levels
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