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Beryllium
Beryllium X-ray photoelectron spectra, beryllium electron configuration, and other elemental information.
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Beryllium • Alkaline Earth Metal
Primary XPS region: Be1s
Overlapping regions: Cu3s, Ni3s, Au5s
Binding energies of common chemical states:
| Chemical state | Binding energy Be1s |
|---|---|
| CuxBey, as received | 113.3 eV |
| CuxBey,Ar+ cleaned | 112.5 eV |
Experimental information
- The Be1s peak has very low sensitivity.
- Use large number (50) of scans when acquiring Be1s spectrum.
Interpretation of XPS spectra
- There are no beryllium secondary peaks to assist in confirmation.
- It is difficult to confidently assign Be1s peak for low concentrations.
About this element
Symbol: Be
Date of discovery: 1798
Name origin: mineral beryl
Appearance: gray
Discoverer: Nicholas Louis Vauquelin
Obtained from: beryl, chrysoberyl
Melting point: 1560 K
Boiling point: 2742 K
Density[kg/m3]: 1848
Molar volume: 4.85 × 10-6 m3/mol
Protons/Electrons: 4
Neutrons: 5
Shell structure: 2,2
Electron configuration: [He]2s2
Oxidation state: 2
Crystal structure: hexagonal
Beryllium was once known as glucinium, from the Greek word meaning sweet, thanks to the sweet tastes of its salts. It has since been found to be extremely toxic and potentially carcinogenic. Its characteristics as a stiff and lightweight material with stability over a wide temperature range make beryllium ideal for the aerospace industry in the manufacture of lightweight structural materials for high-speed aircraft, missiles, space vehicles, and communication satellites. It is also used in computer equipment, watch springs, and other instruments where light weight and rigidity are needed.
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