# BookRiff

If you don’t like to read, you haven’t found the right book

## What is the emission spectrum of argon?

The background spectra emitted from an argon ICP discharge have been recorded over the spectral range 85 to 200 nm. These vacuum ultraviolet spectra were acquired by coupling the ICP to a 0.5-m Seya-Namioka vacuum monochromator, through a helium purged side-arm.

### How many spectral lines does krypton have?

The vacuum wavelengths and the spectral line profiles of four lines of krypton 86, four lines of mercury 198, and four lines of cadmium 114 have been measured. One line, the radiation 2PlO-5d5 of krypton 86 (6057 At has been used as the reference standard in the wavelength measurements.

#### What causes bright lines in a spectra?

As it turns out, all atoms have a very specific set of discrete energy levels their electrons can exist in. When the sodium atom electrons then fall back down to their previous energy level, they emit the difference in energy as light at the D line frequency, creating the bright emission lines.

How many spectral lines does argon have?

We have determined the absolute transition probabilities of 27 emission lines of neutral argon originating from the 3p54p→3p54s transition array in the wavelength region from 650 to 1100 nm using an argon-filled hollow cathode discharge lamp.

Why do a neon atom and an argon atom have different emission spectra?

Each element has a different set of allowed orbits, so each element emits or absorbs photons with different energies — and therefore, different wavelengths.

## How many shells does krypton have?

Krypton
Period period 4
Block p-block
Electron configuration [Ar] 3d10 4s2 4p6
Electrons per shell 2, 8, 18, 8

### What is the electron configuration of krypton?

[Ar] 3d¹⁰ 4s² 4p⁶
Krypton/Electron configuration

#### What is the best explanation for a single bright line in the emission spectrum?

What do the individual lines in a bright line emission spectrum represent? They represent the wavelengths of light that is absorbed by the spectrum They represent the energy that the atom gives off when their electrons are in place. They also represent frequency and energy.

How can the difference in brightness of spectral lines be explained?

Explanation: The thickness (brightness) depends on the number of photons. When there is more frequency, there is more energy so it emits more photons.

Which is the strongest line of Krypton?

Strong Lines of Krypton ( Kr ) Krypton (Kr) Strong Lines of Krypton ( Kr ) Intensity Vacuum Wavelength (Å) Spectrum Reference 20 729.40 Kr II MSP69 70 761.18 Kr II MSP69 30 763.98

## Which is the wavelength of the KR spectrum?

Wavelength (Å) Spectrum Reference 30 h 2464.77 Kr II RCWM80 20 2492.48 Kr II DHM33 25 h 2712.40 Kr II DHM33

### How is the structure of Krypton similar to argon?

The structure of krypton closely resembles that of argon with a somewhat greater displace­ ment of analogous combinations toward greater wavelengths. Five of the ls-2p combiliations arc beyond the range of photography, and extend as far as 2}’-.

#### 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.