What is the shortest possible wavelength that can be absorbed or emitted by a hydrogen atom?
364 nm
This is also known as the Hα line of atomic hydrogen and is bight red (Figure 1.4. 4). Since 1˜ν=λ in units of cm, this converts to 364 nm as the shortest wavelength possible for the Balmer series.
Which of the following statements about the spectral lines of hydrogen is true according to the Bohr model?
Which of the following statements about the spectral lines of hydrogen is true according to the Bohr model? They have frequencies which depend directly on the differences in energy between energy levels.
How did Bohr explain the line spectrum of hydrogen?
Niels Bohr explained the line spectrum of the hydrogen atom by assuming that the electron moved in circular orbits and that orbits with only certain radii were allowed. The orbit closest to the nucleus represented the ground state of the atom and was most stable; orbits farther away were higher-energy excited states.
What is wrong about hydrogen spectrum?
Answer: The number of lines does not equal the number of electrons in an atom. For example, hydrogen has one electron, but its emission spectrum shows many lines. Hence, the photons of an emission spectrum represent a variety of possible energy levels.
What is the shortest wavelength emitted?
Explanation: The electrons that fall to the ( n=2 ) shell are the Balmer series. Their emissions are in the visible region and have the shortest wavelengths (400 nm to 700 nm).
What is shortest wavelength in hydrogen spectrum of Lyman series?
The shortest wavelength in hydrogen spectrum of Lyman series when R_(H) = 109678 cm^(-1) is
- A. 1002.7Å
- B. 1215.67Å
- C. 1127.30Å
- D. 911.7Å
What is the emission spectrum of hydrogen?
Emission Spectrum of Hydrogen
Wavelength | Color |
---|---|
656.2 | red |
486.1 | blue-green |
434.0 | blue-violet |
410.1 | violet |
Why emission spectrum of hydrogen atom is a line spectrum?
The emission spectrum of atomic hydrogen has been divided into a number of spectral series, with wavelengths given by the Rydberg formula. These observed spectral lines are due to the electron making transitions between two energy levels in an atom.
Is hydrogen spectrum continuous?
Effect of the source on the continuous spectrum of hydrogen—The continuous spectrum of hydrogen is observed to be of similar character, although of differing intensity, in a number of sources, a Wood tube, an ordinary discharge tube, the separate striations of the positive column, the condensed spark in hydrogen at …
What is wrong about atom emission spectrum of hydrogen?
It is discontinued spectrum It is a dark line spectrum It is a bright line spectrum It is obtained by passing heat or electricity through hydrogen gas It is also called finger print of atom If you use something like a prism or diffraction grating to separate out the light, for hydrogen, you don’t get a continuous …
What is the shortest wavelength in the electromagnetic spectrum?
Gamma Rays
Gamma Rays-have the smallest wavelengths and the most energy of any other wave in the electromagnetic spectrum.