Search results
Results from the WOW.Com Content Network
This line has been called the amphoteric line, [2] the metal-nonmetal line, [3] the metalloid line, [4] [5] the semimetal line, [6] or the staircase. [2] [n 1] While it has also been called the Zintl border [8] or the Zintl line [9] [10] these terms instead refer to a vertical line sometimes drawn between groups 13 and 14.
Potassium tellurite, K 2 TeO 3, is an inorganic potassium-tellurium compound. [1] ... [3] [4] [5] References This page was last edited on 3 ...
Figure 2: L-edge spectral components. As we move left across the periodic table (e.g. from copper to iron), we create additional holes in the metal 3d orbitals.For example, a low-spin ferric (Fe III) system in an octahedral environment has a ground state of (t 2g) 5 (e g) 0 resulting in transitions to the t 2g (dπ) and e g (dσ) sets.
In physics, Edge states are the topologically protected electronic states that exist at the boundary of the material and cannot be removed without breaking the system's symmetry. [ 1 ] [ 2 ] Background
Potassium is the eighth or ninth most common element by mass (0.2%) in the human body, so that a 60 kg adult contains a total of about 120 g of potassium. [84] The body has about as much potassium as sulfur and chlorine, and only calcium and phosphorus are more abundant (with the exception of the ubiquitous CHON elements). [85]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
In gamma-ray spectrometry, the Compton edge is a feature of the measured gamma-ray energy spectrum that results from Compton scattering in the detector material. It corresponds to the highest energy that can be transferred to a weakly bound electron of a detector's atom by an incident photon in a single scattering process, and manifests itself as a ridge in the measured gamma-ray energy spectrum.
The K-edge of an open shell transition metal ion displays a weak pre-edge 1s-to-valence-metal-d transition at a lower energy than the intense edge jump. This dipole-forbidden transition gains intensity through a quadrupole mechanism and/or through 4p mixing into the final state. The pre-edge contains information about ligand fields and ...