## Does chlorine have an emission spectrum?

Abstract. It has long been known that chlorine, in addition to its atomic line spectrum, can be made to emit both continua and discrete bands, under suitable conditions of excitation.

What wavelength does chlorine absorb?

509-570 nm
Using the system the absorption spectrum of molecular chlorine has been measured, in the wavelength range 509-570 nm, using cavity enhanced absorption spectroscopy.

### What is an absorption spectrum vs emission?

The main difference between emission and absorption spectra is that an emission spectrum has different coloured lines in the spectrum, whereas an absorption spectrum has dark-coloured lines in the spectrum.

How are emission and absorption spectrum related?

The difference between absorption and emission spectra are that absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

#### Is N 3 to N 2 absorption or emission?

The energy of the photon is the exact energy that is lost by the electron moving to its lower energy level. When the electron changes from n=3 or above to n=2, the photons emitted fall in the Visible Light region of the spectra.

What is emission and absorption?

Emission lines refer to the fact that glowing hot gas emits lines of light, whereas absorption lines refer to the tendency of cool atmospheric gas to absorb the same lines of light. When light passes through gas in the atmosphere some of the light at particular wavelengths is scattered resulting in darker bands.

## Why are there more emission lines than absorption?

In the emission spectrum, the electrons in the energy levels usually start at random energy levels and so there is more of a variety of wavelengths that could possibly be emitted.

Which photon absorption will cause an electron transition from n 1 to n 2?

ultraviolet light
A photon with an energy of 10.2 eV has a wavelength of 1.21 x 10-7 m, in the ultraviolet part of the spectrum. So when an electron wants to jump from n = 1 to n = 2, it must absorb a photon of ultraviolet light.

### What happens when an electron goes from N 4 to N 2?

Hint: Transition from n = 4 to n =2 means the electrons jumped from higher energy level orbit to lower energy level orbit by losing energy. There is a relationship between wavenumber and number of orbits where the electron is present.

What causes emission spectrum?

An emission spectrum is the light emitted when an element in the gaseous state is heated. It is caused when the electrons in excited atoms drop to lower energy states and emit energy as light of specific colours. Each type of element emits its own emission spectrum.