Table of Contents
What does the hydrogen emission spectrum show?
Emission Spectrum of Hydrogen. When an electric current is passed through a glass tube that contains hydrogen gas at low pressure the tube gives off blue light. When this light is passed through a prism (as shown in the figure below), four narrow bands of bright light are observed against a black background.
What is hydrogen spectrum explain with diagram?
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.
How the emission spectrum of atomic hydrogen is formed?
The origin of the hydrogen emission spectrum When unexcited, hydrogen’s electron is in the first energy level—the level closest to the nucleus. But if energy is supplied to the atom, the electron is excited into a higher energy level, or even removed from the atom altogether.
How is hydrogen spectrum explained by Bohr’s atomic model?
Bohr’s model explains the spectral lines of the hydrogen atomic emission spectrum. While the electron of the atom remains in the ground state, its energy is unchanged. When the atom absorbs one or more quanta of energy, the electron moves from the ground state orbit to an excited state orbit that is further away.
Which statement correctly describes the atomic emission spectrum of hydrogen?
Which statement correctly describes the atomic emission spectrum of hydrogen? A. It is a continuous spectrum converging at high frequency.
What do you mean by emission spectrum?
The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to an atom or molecule making a transition from a high energy state to a lower energy state.
What are the types of hydrogen spectrum?
Hydrogen spectral lines:
- Lyman series (n=1)
- Balmer series (n=2)
- Paschen series (n=3)
- Brackett series (n=4)
- Pfund series (n=5)
What do you understand by emission spectrum?
How does Bohr’s model explain emission and absorption lines in the spectrum?
When the electron moves from one allowed orbit to another it emits or absorbs photons of energy matching exactly the separation between the energies of the given orbits (emission/absorption spectrum).
Why is the emission spectrum important?
The different colors of light produced by emission spectra of different elements allows them to be identified. One use of this technique is to identify the elements present in distant stars.
What does the emission spectrum of the hydrogen atom reveal about its energy levels?
The higher the frequency, the higher the energy of the light. If an electron falls from the 3-level to the 2-level, red light is seen. This is the origin of the red line in the hydrogen spectrum. By measuring the frequency of the red light, you can work out its energy.
Why is the emission spectrum of hydrogen a line spectrum?
How emission spectrum is produced?
Atomic emission spectra are produced when excited electrons return to the ground state. The emitted light of electrons corresponds to energies of the specific electrons.
What is emission spectrum discuss its types?
The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to an electron making a transition from a high energy state to a lower energy state. The photon energy of the emitted photon is equal to the energy difference between the two states.