Atomic Spectrum and Hydrogen Spectrum
Najam Academy・14 minutes read
The spectrum of hydrogen consists of discrete lines of light corresponding to specific energy transitions between electron energy levels at the hydrogen atom. Different series such as Lyman, Balmer, and Paschen showcase these transitions, providing essential insight into atomic structure and quantum mechanics.
Insights
- The atomic spectrum of hydrogen consists of discrete lines of light produced by electron transitions between energy levels in the atom, with each line corresponding to a specific wavelength and energy transition.
- Different series within the hydrogen spectrum, such as the Balmer and Lyman series, signify specific electron transitions to distinct energy levels, showcasing the importance of understanding these spectral lines for delving into atomic structure and quantum mechanics.
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Recent questions
What is a spectrum?
A spectrum is a group of radiations or wavelengths when light passes through a prism and splits into seven colors.
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Summary
00:00
Understanding Atomic Spectrum and Bohr's Concept
- Spectrum is a group of radiations or wavelengths when light passes through a prism and splits into seven colors.
- Two types of spectrum: continuous spectrum (like a rainbow with no clear boundaries between colors) and line spectrum (like a fluorescent lamp with clear boundary lines between colors).
- Line spectrum further divided into line absorption spectrum (atom absorbs specific colors) and line emission spectrum (atom emits specific colors).
- Absorption spectrum: atom absorbs specific colors, while emission spectrum: atom emits specific colors.
- Bohr's concept: when an electron jumps between energy levels in an atom, it emits or absorbs energy in the form of radiation.
- Calculation example: energy emitted by an electron jumping between energy levels in hydrogen atom.
- Formula to find the wavelength of emitted radiation: energy of radiation = HC/λ.
- Different series of atomic spectrum of hydrogen: Lyman series (electron jumps to n=1), Balmer series (electron jumps to n=2), Paschen series (electron jumps to n=3), Bracket series (electron jumps to n=4), and Pfund series (electron jumps to n=5).
- Calculation example: finding the longest wavelength of Balmer series.
- Shortest and longest wavelengths in Lyman series: shortest when electron jumps from infinity to n=1, longest when electron jumps from n=2 to n=1.
00:00
Hydrogen Spectrum: Discrete Lines of Light
- The atomic spectrum of hydrogen consists of discrete lines of light.
- These lines are produced when electrons transition between energy levels in the hydrogen atom.
- Each line corresponds to a specific wavelength of light, indicating a specific energy transition.
- The Balmer series, Lyman series, and Paschen series are examples of spectral lines in the hydrogen spectrum.
- The Balmer series involves transitions to the second energy level, while the Lyman series involves transitions to the first energy level.
- Understanding the hydrogen spectrum is crucial for studying atomic structure and quantum mechanics.
