How many spectral lines does mercury have?

Four visible spectral lines of mercury are depicted in Fig. 2. The accepted values of their wavelengths and color associations are summarized in Table 1. To determine the wavelengths of these spectral lines proceed as follows.

What type of spectrum is mercury?

Standard Spectral Lines

Why does mercury have a more complex line spectrum than hydrogen?

The orbital changes of hydrogen electrons that give rise to some spectral lines are shown in Figure 1. However, because these other atoms ordinarily have more than one electron each, the orbits of their electrons are much more complicated, and the spectra are more complex as well.

What color are mercury emission lines?

Emission line spectrum The blue-green tint of mercury vapor lamps is caused by the strong violet and green lines.

What causes spectral lines to appear?

Spectral lines are produced by transitions of electrons within atoms or ions. As the electrons move closer to or farther from the nucleus of an atom (or of an ion), energy in the form of light (or other radiation) is emitted or absorbed.…

What is the frequency of mercury?

432 hz
Mercury – Original frequency planet at 432 hz.

Why is mercury Vapour at low pressure?

Fluorescent and compact fluorescent lamps work based on the low pressure gas discharge principle. The glass tube on low pressure gas discharge lamps is filled with a noble gas at low pressure and a small quantity of mercury. The discharge process causes the mercury vapor to emit UV rays.

How does a mercury light work?

The mercury vapor lamp works by creating an electric current to mercury vapor within a sealed glass jacket. The bulb is comprised of an inner tube, called the arc tube, and an outer jacket (or bulb). Using too small of a ballast will result in lower light output and can shorten the life of the bulb.

What are the brightest wavelengths of light in mercury?

The wavelengths of the prominent lines in mercury are purple (405 nm), blue (436 nm), blue- green (492 nm), greenish yellow (546 nm), yellow (577 nm), orange (623 nm), and red (691 nm). Remember that 1 nm = 10-9 m.

What is meant by spectral lines?

: one of a series of linear images formed by a spectrograph or similar instrument and corresponding to a narrow portion of the spectrum of the radiation emitted or absorbed by a particular source.

What are the spectral lines of mercury and Mercury?

At the right of the image are the spectral lines through a 600 line/mm diffraction grating. The prominent mercury lines are at 435.835 nm (blue), 546.074 nm (green), and a pair at 576.959 nm and 579.065 nm (yellow-orange).

What are the lines in an atomic spectra?

Atomic Spectra. At the right of the image are the spectral lines through a 600 line/mm diffraction grating. The prominent mercury lines are at 435.835 nm (blue), 546.074 nm (green), and a pair at 576.959 nm and 579.065 nm (yellow-orange). There are two other blue lines at 404.656 nm and 407.781 nm and a weak line at 491.604 nm.

What are the emission lines in a mercury vapor lamp?

Emission line spectrum. In low-pressure mercury-vapor lamps only the lines at 184 nm and 253 nm are present. Only the light at 253 nm is usable. Synthetic quartz can be used in the manufacturing to keep the 184 nm light from being absorbed. In medium-pressure mercury-vapor lamps, the lines from 200–600 nm are present.

What are the visible lines of neon light?

Some of the visible lines of neon: At left is a mercury spectral tube excited by means of a 5000 volt transformer. At the right of the image are the spectral lines through a 600 line/mm diffraction grating. The prominent mercury lines are at 435.835 nm (blue), 546.074 nm (green), and a pair at 576.959 nm and 579.065 nm (yellow-orange).