Search Thermo Fisher Scientific
- Order Status
- Quick Order
-
Don't have an account ? Create Account
table of Elements
Tellurium
Tellurium X-ray photoelectron spectra, tellurium electron configuration, and other elemental information.
Join the conversation
Tellurium • Metalloid
Primary XPS region: Te3d
Overlapping regions: Cr2p, Ag3p3/2
Binding energies of common chemical states:
| Chemical state | Binding energy Te3d5/2 |
|---|---|
| Te metal | 573.0 eV |
| Te oxide | 576.3 eV |
Native oxide charge referenced to metal peak.
Experimental information
- If trying to differentiate between chromium and tellurium, collect entire Te3d region (550eV–600eV), making sure both Te3d5/2 and Te3d3/2 components are acquired.
Interpretation of XPS spectra
- Te3d region has well-separated spin-orbit components (Δmetal=10.4eV).
- Peak shape for tellurium metal is approximately symmetric.
- There is a direct overlap between Te3d and Cr2p peaks.
- Although Te3d / Cr2p peaks have strong overlap, Te3d spin-orbit components have a 3:2 intensity ratio compared to a 2:1 ratio for Cr2p.
- Check for the weaker Te3p peaks, if tellurium concentration is high enough.
About this element
Symbol: Te
Date of discovery: 1782
Name origin: Greek tellus
Appearance: silverish
Discoverer: Franz Muller von Reichenstein
Obtained from: lead, copper refinement
Melting point: 722.65 K
Boiling point: 1262.95 K
Density[kg/m3]: 6240
Molar volume: 20.46 × 10-6 m3/mol
Protons/Electrons: 52
Neutrons: 76
Shell structure: 2,8,18,18,6
Electron configuration: [Kr]4d105s25p4
Oxidation state: ±2,4,6
Crystal structure: hexagonal
F. J. Muller von Reichenstein, a Romanian mining official, discovered the silver-white metalloid tellurium in 1782. While being found free in nature, tellurium is most frequently found as the telluride of gold (calaverite) and several other ores. In crystalline form, tellurium has a silvery white color and, in its pure state, the metalloid transforms to having a metallic shimmer. Similar to selenium and sulfur, the conductivity of tellurium increases slightly with exposure to light. Tellurium is combined to lead to increase its resistance to sulfuric acid and added to stainless steel and copper to make easier to machine and mill. While forming many compounds, tellurium produces none that are commercially important.
Products
Style Sheet for Instrument Cards Original
Style Sheet for Global Design System
Style Sheet for Komodo Tabs
Style Sheet to change H3 to p with em-h3-header class
Style Sheet to change H2 style to p with em-h2-header class
Style Sheet for Products Table Specifications
Style Sheet for Global Design System
Style Sheet for Komodo Tabs
Style Sheet to change H3 to p with em-h3-header class
Style Sheet to change H2 style to p with em-h2-header class
Style Sheet for Products Table Specifications
Fix for left nav
Style Sheet for Support and Service footer
Style Sheet for Fonts
Style Sheet for Cards
Electron microscopy services for
the materials science
To ensure optimal system performance, we provide you access to a world-class network of field service experts, technical support, and certified spare parts.
